Pediatric News

Two research teams have identified a new coronavirus variant in New York City and across the Northeast that could evade natural immune responses and some monoclonal antibody treatments, according to CNN.

Jae Young Ju/iStock/Getty Images Plus

The variant, called B.1.526, has appeared in diverse neighborhoods in New York City and is “scattered in the Northeast,” the researchers said.

“We observed a steady increase in the detection rate from late December to mid-February, with an alarming rise to 12.7% in the past two weeks,” researchers from Columbia University Medical Center wrote in a report, which was published as a preprint Feb. 25. 

On Feb. 22, the team released another preprint about the B.1.1.7 and B.1.351 variants first identified in the United Kingdom and South Africa, respectively, which also mentions the B.1.526 variant in the U.S. Neither report has been peer reviewed.

Viruses mutate often, and several coronavirus variants have been identified and followed during the pandemic. Not all mutations are significant or are necessarily more contagious or dangerous. Researchers have been tracking the B.1.526 variant in the U.S. to find out if there are significant mutations that could be a cause for concern.

In the most recent preprints, the variant appears to have the same mutation found in B.1.351, called E484K, which may allow the virus to evade vaccines and the body’s natural immune response. The E484K mutation has shown up in at least 59 lines of the coronavirus, the research team said. That means the virus is evolving independently across the country and world, which could give the virus an advantage.

“A concern is that it might be beginning to overtake other strains, just like the U.K. and South African variants,” David Ho, MD, the lead study author and director of the Aaron Diamond AIDS Research Center at Columbia, told CNN.

“However, we don’t have enough data to firm up this point now,” he said.

In a separate preprint posted Feb. 23, a research team at the California Institute of Technology developed a software tool that noticed the rise of B.1.526 in the New York region. The preprint hasn’t yet been peer reviewed.

“It appears that the frequency of lineage B.1.526 has increased rapidly in New York,” they wrote.

Both teams also reported on another variant, called B.1.427/B.1.429, which appears to be increasing in California. The variant could be more contagious and cause more severe disease, they said, but the research is still in the early stages.

Researchers at the University of California, San Francisco, have tested virus samples from recent outbreaks in California and also found that the variant is becoming more common. The variant didn’t appear in samples from September but was in half of the samples by late January. It has a different pattern of mutations than other variants, and one called L452R may affect the spike protein on the virus and allow it attach to cells more easily.

“Our data shows that this is likely the key mutation that makes this variant more infectious,” Charles Chiu, MD, associate director of the clinical microbiology lab at UCSF, told CNN.

The team also noticed that patients with a B.1.427/B.1.429 infection had more severe COVID-19 cases and needed more oxygen, CNN reported. The team plans to post a preprint once public health officials in San Francisco review the report.

Right now, the CDC provides public data for three variants: B.1.1.7, B.1.351, and P.1, which was first identified in Brazil. The U.S. has reported 1,881 B.1.1.7 cases across 45 states, 46 B.1.351 cases in 14 states, and five P.1 cases in four states, according to a CDC tally as of Feb. 23.

At the moment, lab officials aren’t able to tell patients or doctors whether someone has been infected by a variant, according to Kaiser Health News. High-level labs conduct genomic sequencing on samples and aren’t able to communicate information back to individual people.

But the Association of Public Health Laboratories and public health officials in several states are pushing for federal authorization of a test that could sequence the full genome and notify doctors. The test could be available in coming weeks, the news outlet reported.

A version of this article first appeared on WebMD.com.

Two research teams have identified a new coronavirus variant in New York City and across the Northeast that could evade natural immune responses and some monoclonal antibody treatments, according to CNN.

Jae Young Ju/iStock/Getty Images Plus

The variant, called B.1.526, has appeared in diverse neighborhoods in New York City and is “scattered in the Northeast,” the researchers said.

“We observed a steady increase in the detection rate from late December to mid-February, with an alarming rise to 12.7% in the past two weeks,” researchers from Columbia University Medical Center wrote in a report, which was published as a preprint Feb. 25. 

On Feb. 22, the team released another preprint about the B.1.1.7 and B.1.351 variants first identified in the United Kingdom and South Africa, respectively, which also mentions the B.1.526 variant in the U.S. Neither report has been peer reviewed.

Viruses mutate often, and several coronavirus variants have been identified and followed during the pandemic. Not all mutations are significant or are necessarily more contagious or dangerous. Researchers have been tracking the B.1.526 variant in the U.S. to find out if there are significant mutations that could be a cause for concern.

In the most recent preprints, the variant appears to have the same mutation found in B.1.351, called E484K, which may allow the virus to evade vaccines and the body’s natural immune response. The E484K mutation has shown up in at least 59 lines of the coronavirus, the research team said. That means the virus is evolving independently across the country and world, which could give the virus an advantage.

“A concern is that it might be beginning to overtake other strains, just like the U.K. and South African variants,” David Ho, MD, the lead study author and director of the Aaron Diamond AIDS Research Center at Columbia, told CNN.

“However, we don’t have enough data to firm up this point now,” he said.

In a separate preprint posted Feb. 23, a research team at the California Institute of Technology developed a software tool that noticed the rise of B.1.526 in the New York region. The preprint hasn’t yet been peer reviewed.

“It appears that the frequency of lineage B.1.526 has increased rapidly in New York,” they wrote.

Both teams also reported on another variant, called B.1.427/B.1.429, which appears to be increasing in California. The variant could be more contagious and cause more severe disease, they said, but the research is still in the early stages.

Researchers at the University of California, San Francisco, have tested virus samples from recent outbreaks in California and also found that the variant is becoming more common. The variant didn’t appear in samples from September but was in half of the samples by late January. It has a different pattern of mutations than other variants, and one called L452R may affect the spike protein on the virus and allow it attach to cells more easily.

“Our data shows that this is likely the key mutation that makes this variant more infectious,” Charles Chiu, MD, associate director of the clinical microbiology lab at UCSF, told CNN.

The team also noticed that patients with a B.1.427/B.1.429 infection had more severe COVID-19 cases and needed more oxygen, CNN reported. The team plans to post a preprint once public health officials in San Francisco review the report.

Right now, the CDC provides public data for three variants: B.1.1.7, B.1.351, and P.1, which was first identified in Brazil. The U.S. has reported 1,881 B.1.1.7 cases across 45 states, 46 B.1.351 cases in 14 states, and five P.1 cases in four states, according to a CDC tally as of Feb. 23.

At the moment, lab officials aren’t able to tell patients or doctors whether someone has been infected by a variant, according to Kaiser Health News. High-level labs conduct genomic sequencing on samples and aren’t able to communicate information back to individual people.

But the Association of Public Health Laboratories and public health officials in several states are pushing for federal authorization of a test that could sequence the full genome and notify doctors. The test could be available in coming weeks, the news outlet reported.

A version of this article first appeared on WebMD.com.

Two research teams have identified a new coronavirus variant in New York City and across the Northeast that could evade natural immune responses and some monoclonal antibody treatments, according to CNN.

Jae Young Ju/iStock/Getty Images Plus

The variant, called B.1.526, has appeared in diverse neighborhoods in New York City and is “scattered in the Northeast,” the researchers said.

“We observed a steady increase in the detection rate from late December to mid-February, with an alarming rise to 12.7% in the past two weeks,” researchers from Columbia University Medical Center wrote in a report, which was published as a preprint Feb. 25. 

On Feb. 22, the team released another preprint about the B.1.1.7 and B.1.351 variants first identified in the United Kingdom and South Africa, respectively, which also mentions the B.1.526 variant in the U.S. Neither report has been peer reviewed.

Viruses mutate often, and several coronavirus variants have been identified and followed during the pandemic. Not all mutations are significant or are necessarily more contagious or dangerous. Researchers have been tracking the B.1.526 variant in the U.S. to find out if there are significant mutations that could be a cause for concern.

In the most recent preprints, the variant appears to have the same mutation found in B.1.351, called E484K, which may allow the virus to evade vaccines and the body’s natural immune response. The E484K mutation has shown up in at least 59 lines of the coronavirus, the research team said. That means the virus is evolving independently across the country and world, which could give the virus an advantage.

“A concern is that it might be beginning to overtake other strains, just like the U.K. and South African variants,” David Ho, MD, the lead study author and director of the Aaron Diamond AIDS Research Center at Columbia, told CNN.

“However, we don’t have enough data to firm up this point now,” he said.

In a separate preprint posted Feb. 23, a research team at the California Institute of Technology developed a software tool that noticed the rise of B.1.526 in the New York region. The preprint hasn’t yet been peer reviewed.

“It appears that the frequency of lineage B.1.526 has increased rapidly in New York,” they wrote.

Both teams also reported on another variant, called B.1.427/B.1.429, which appears to be increasing in California. The variant could be more contagious and cause more severe disease, they said, but the research is still in the early stages.

Researchers at the University of California, San Francisco, have tested virus samples from recent outbreaks in California and also found that the variant is becoming more common. The variant didn’t appear in samples from September but was in half of the samples by late January. It has a different pattern of mutations than other variants, and one called L452R may affect the spike protein on the virus and allow it attach to cells more easily.

“Our data shows that this is likely the key mutation that makes this variant more infectious,” Charles Chiu, MD, associate director of the clinical microbiology lab at UCSF, told CNN.

The team also noticed that patients with a B.1.427/B.1.429 infection had more severe COVID-19 cases and needed more oxygen, CNN reported. The team plans to post a preprint once public health officials in San Francisco review the report.

Right now, the CDC provides public data for three variants: B.1.1.7, B.1.351, and P.1, which was first identified in Brazil. The U.S. has reported 1,881 B.1.1.7 cases across 45 states, 46 B.1.351 cases in 14 states, and five P.1 cases in four states, according to a CDC tally as of Feb. 23.

At the moment, lab officials aren’t able to tell patients or doctors whether someone has been infected by a variant, according to Kaiser Health News. High-level labs conduct genomic sequencing on samples and aren’t able to communicate information back to individual people.

But the Association of Public Health Laboratories and public health officials in several states are pushing for federal authorization of a test that could sequence the full genome and notify doctors. The test could be available in coming weeks, the news outlet reported.

A version of this article first appeared on WebMD.com.

With the daily stream of new information, it is difficult to keep up with data on how the coronavirus epidemic affects children and school attendance, as well as how pediatricians can advise parents. The following is a summary of recently published information about birth and infant outcomes, and symptoms seen in infants and children, along with a review of recent information on transmission in schools.

COVID-19 in newborns

In November 2020, the Centers for Disease Control and Prevention published data from 16 jurisdictions detailing pregnancy and infant outcomes of more than 5,000 women with SARS-CoV-2 infection. The data were collected from March to October 2020. More than 80% of the women found to be positive for SARS-CoV-2 were identified during their third trimester. The surveillance found that 12.9% of infants born to infected mothers were born preterm, compared with an expected rate in the population of approximately 10%, suggesting that third-trimester infection may be associated with an increase in premature birth. Among 610 infants born to infected mothers and tested for SARS-CoV-2 during their nursery stay, 2.6% were positive. The infant positivity rate was as high as 4.3% among infants who were born to women with a documented SARS-CoV-2 infection within 2 weeks of the delivery date. No newborn infections were found among the infants whose mothers’ infection occurred more than 14 days before delivery. Current CDC and American Academy of Pediatrics recommendations are to test infants born to mothers with suspected or confirmed SARS-CoV-2 infection.

Data on clinical characteristics of a series of hospitalized infants in Montreal was published in December 2020. The study identified infants 0-12 months old who were diagnosed or treated at a single Montreal hospital from February until May 2020. In all, 25 (2.0%) of 1,165 infants were confirmed to have SARS-CoV-2, and approximately 8 of those were hospitalized; 85% had gastrointestinal symptoms and 81% had a fever. Upper respiratory tract symptoms were present in 59%, and none of the hospitalized infants required supplemental oxygen. The data overall support the idea that infants are generally only mildly symptomatic when infected, and respiratory symptoms do not appear to be the most prevalent finding.
 

COVID-19 in children

The lack of prominent respiratory symptoms among children with SARS-CoV-2 infection symptoms was echoed in another study that evaluated more than 2,400 children in Alberta, Canada. Among the 1,987 children who tested positive for SARS-CoV-2, one-third (35.9%) were asymptomatic. Some symptoms were not helpful in differentiating children who tested positive vs. those who tested negative. The frequency of muscle or joint pain, myalgia, malaise, and respiratory symptoms such as nasal congestion, difficulty breathing, and sore throat was indistinguishable between the SARS-CoV-2–infected and –noninfected children. However, anosmia was much more prevalent (7.7%) among those who tested positive for SARS-CoV-2, compared with 1.1% of those who were negative. Headache was present in 15.7% of those who were positive vs. 6.3% of those who were negative. Fever was slightly more prevalent, at 25.5% among the positive patients and 15% of the negative patients.

The authors calculated likelihood ratios for individual symptoms and found that almost all individual symptoms had likelihood ratios of 1:1.8 for testing positive. However, nausea and vomiting had a likelihood ratio of 5.5, and for anosmia it was 7.3. The combination of symptoms of nausea, nausea and vomiting, and headache produced a likelihood ratio of nearly 66. The authors suggest that these data on ambulatory children indicate that, in general, respiratory symptoms are not helpful for distinguishing patients who are likely to be positive, although the symptoms of nausea, headache, and both along with fever can be highly predictive. The authors propose that it may be more helpful for schools to focus on identifying children with combinations of these high-yield symptoms for potential testing and exclusion from school rather than on random or isolated respiratory symptoms.
 

COVID-19 in schools

Transmission risk in different settings is certainly something parents quiz pediatricians about, so data released in January and February 2021 may help provide some context. A CDC report on the experience of 17 schools in Wisconsin from August to November 2020 is illuminating. In that study, the SARS-CoV-2 case rate in students, school teachers, and staff members was 63% of the rate in the general public at the time, suggesting that the mitigation strategies used by the schools were effective. In addition, among the students who contracted SARS-CoV-2, only 5% of cases were attributable to school exposure. No cases of SARS-CoV-2 among faculty or staff were linked to school exposure.

Indeed, data released on Feb. 2, 2021, demonstrate that younger adults are the largest source of sustaining the epidemic. On the basis of data from August to October 2020, the opening of schools does not appear to be associated with population-level changes in SARS-CoV-2–attributable deaths. For October 2020, the authors estimate that 2.7% of infections were from children 0-9 years old, 7.1% from those ages 10-19 years, but 34% from those 20-34 years old and 38% from those 35-49 years old, by far the largest two groups contributing to spread. It should be noted that ages 20-49 years are the peak working years for adults, but the source of the data did not allow the authors to conclude whether infections were work related or social activity related. Their data do suggest that prioritizing vaccination of younger working-age adults may put more of a dent in the pandemic spread than vaccinating older individuals.

In a similar vein, a systematic review and meta-analysis of recent studies looked at household transmission of SARS-CoV-2 and demonstrated an attack rate within households of 16.6%. Of note, secondary household attack rates were only 0.7% from asymptomatic cases and 18% from symptomatic cases, with spouses and adult household contacts having higher secondary attack rates than children in the household.
 

COVID-19 in student athletes

A recent MMWR report described a SARS-CoV-2 outbreak associated with a series of wrestling tournaments in Florida, held in December and January 2021. While everyone would like children to be able to participate in sports, such events potentially violate several of the precepts for preventing spread: Avoid close contact and don’t mix contacts from different schools. Moreover, the events occurred during some of the highest incident case rates in the counties where the tournaments took place.

On Dec. 4, 2020, the AAP released updated guidance for athletic activities and recommended cloth face coverings for student athletes during training, in competition, while traveling, and even while waiting on the sidelines and not actively playing. Notable exceptions to the recommendation were competitive cheerleading, gymnastics, wrestling, and water sports, where the risk for entanglement from face coverings was too high or was not practical.

Taken as a whole, the evolving data continue to show that school mitigation practices can be effective in reducing the risk for SARS-CoV-2 infection. In addition, SARS-CoV-2 rates among schoolchildren more closely mirror community rates and are probably more influenced by what happens outside the schools than inside the schools.

A version of this article first appeared on Medscape.com.

With the daily stream of new information, it is difficult to keep up with data on how the coronavirus epidemic affects children and school attendance, as well as how pediatricians can advise parents. The following is a summary of recently published information about birth and infant outcomes, and symptoms seen in infants and children, along with a review of recent information on transmission in schools.

COVID-19 in newborns

In November 2020, the Centers for Disease Control and Prevention published data from 16 jurisdictions detailing pregnancy and infant outcomes of more than 5,000 women with SARS-CoV-2 infection. The data were collected from March to October 2020. More than 80% of the women found to be positive for SARS-CoV-2 were identified during their third trimester. The surveillance found that 12.9% of infants born to infected mothers were born preterm, compared with an expected rate in the population of approximately 10%, suggesting that third-trimester infection may be associated with an increase in premature birth. Among 610 infants born to infected mothers and tested for SARS-CoV-2 during their nursery stay, 2.6% were positive. The infant positivity rate was as high as 4.3% among infants who were born to women with a documented SARS-CoV-2 infection within 2 weeks of the delivery date. No newborn infections were found among the infants whose mothers’ infection occurred more than 14 days before delivery. Current CDC and American Academy of Pediatrics recommendations are to test infants born to mothers with suspected or confirmed SARS-CoV-2 infection.

Data on clinical characteristics of a series of hospitalized infants in Montreal was published in December 2020. The study identified infants 0-12 months old who were diagnosed or treated at a single Montreal hospital from February until May 2020. In all, 25 (2.0%) of 1,165 infants were confirmed to have SARS-CoV-2, and approximately 8 of those were hospitalized; 85% had gastrointestinal symptoms and 81% had a fever. Upper respiratory tract symptoms were present in 59%, and none of the hospitalized infants required supplemental oxygen. The data overall support the idea that infants are generally only mildly symptomatic when infected, and respiratory symptoms do not appear to be the most prevalent finding.
 

COVID-19 in children

The lack of prominent respiratory symptoms among children with SARS-CoV-2 infection symptoms was echoed in another study that evaluated more than 2,400 children in Alberta, Canada. Among the 1,987 children who tested positive for SARS-CoV-2, one-third (35.9%) were asymptomatic. Some symptoms were not helpful in differentiating children who tested positive vs. those who tested negative. The frequency of muscle or joint pain, myalgia, malaise, and respiratory symptoms such as nasal congestion, difficulty breathing, and sore throat was indistinguishable between the SARS-CoV-2–infected and –noninfected children. However, anosmia was much more prevalent (7.7%) among those who tested positive for SARS-CoV-2, compared with 1.1% of those who were negative. Headache was present in 15.7% of those who were positive vs. 6.3% of those who were negative. Fever was slightly more prevalent, at 25.5% among the positive patients and 15% of the negative patients.

The authors calculated likelihood ratios for individual symptoms and found that almost all individual symptoms had likelihood ratios of 1:1.8 for testing positive. However, nausea and vomiting had a likelihood ratio of 5.5, and for anosmia it was 7.3. The combination of symptoms of nausea, nausea and vomiting, and headache produced a likelihood ratio of nearly 66. The authors suggest that these data on ambulatory children indicate that, in general, respiratory symptoms are not helpful for distinguishing patients who are likely to be positive, although the symptoms of nausea, headache, and both along with fever can be highly predictive. The authors propose that it may be more helpful for schools to focus on identifying children with combinations of these high-yield symptoms for potential testing and exclusion from school rather than on random or isolated respiratory symptoms.
 

COVID-19 in schools

Transmission risk in different settings is certainly something parents quiz pediatricians about, so data released in January and February 2021 may help provide some context. A CDC report on the experience of 17 schools in Wisconsin from August to November 2020 is illuminating. In that study, the SARS-CoV-2 case rate in students, school teachers, and staff members was 63% of the rate in the general public at the time, suggesting that the mitigation strategies used by the schools were effective. In addition, among the students who contracted SARS-CoV-2, only 5% of cases were attributable to school exposure. No cases of SARS-CoV-2 among faculty or staff were linked to school exposure.

Indeed, data released on Feb. 2, 2021, demonstrate that younger adults are the largest source of sustaining the epidemic. On the basis of data from August to October 2020, the opening of schools does not appear to be associated with population-level changes in SARS-CoV-2–attributable deaths. For October 2020, the authors estimate that 2.7% of infections were from children 0-9 years old, 7.1% from those ages 10-19 years, but 34% from those 20-34 years old and 38% from those 35-49 years old, by far the largest two groups contributing to spread. It should be noted that ages 20-49 years are the peak working years for adults, but the source of the data did not allow the authors to conclude whether infections were work related or social activity related. Their data do suggest that prioritizing vaccination of younger working-age adults may put more of a dent in the pandemic spread than vaccinating older individuals.

In a similar vein, a systematic review and meta-analysis of recent studies looked at household transmission of SARS-CoV-2 and demonstrated an attack rate within households of 16.6%. Of note, secondary household attack rates were only 0.7% from asymptomatic cases and 18% from symptomatic cases, with spouses and adult household contacts having higher secondary attack rates than children in the household.
 

COVID-19 in student athletes

A recent MMWR report described a SARS-CoV-2 outbreak associated with a series of wrestling tournaments in Florida, held in December and January 2021. While everyone would like children to be able to participate in sports, such events potentially violate several of the precepts for preventing spread: Avoid close contact and don’t mix contacts from different schools. Moreover, the events occurred during some of the highest incident case rates in the counties where the tournaments took place.

On Dec. 4, 2020, the AAP released updated guidance for athletic activities and recommended cloth face coverings for student athletes during training, in competition, while traveling, and even while waiting on the sidelines and not actively playing. Notable exceptions to the recommendation were competitive cheerleading, gymnastics, wrestling, and water sports, where the risk for entanglement from face coverings was too high or was not practical.

Taken as a whole, the evolving data continue to show that school mitigation practices can be effective in reducing the risk for SARS-CoV-2 infection. In addition, SARS-CoV-2 rates among schoolchildren more closely mirror community rates and are probably more influenced by what happens outside the schools than inside the schools.

A version of this article first appeared on Medscape.com.

With the daily stream of new information, it is difficult to keep up with data on how the coronavirus epidemic affects children and school attendance, as well as how pediatricians can advise parents. The following is a summary of recently published information about birth and infant outcomes, and symptoms seen in infants and children, along with a review of recent information on transmission in schools.

COVID-19 in newborns

In November 2020, the Centers for Disease Control and Prevention published data from 16 jurisdictions detailing pregnancy and infant outcomes of more than 5,000 women with SARS-CoV-2 infection. The data were collected from March to October 2020. More than 80% of the women found to be positive for SARS-CoV-2 were identified during their third trimester. The surveillance found that 12.9% of infants born to infected mothers were born preterm, compared with an expected rate in the population of approximately 10%, suggesting that third-trimester infection may be associated with an increase in premature birth. Among 610 infants born to infected mothers and tested for SARS-CoV-2 during their nursery stay, 2.6% were positive. The infant positivity rate was as high as 4.3% among infants who were born to women with a documented SARS-CoV-2 infection within 2 weeks of the delivery date. No newborn infections were found among the infants whose mothers’ infection occurred more than 14 days before delivery. Current CDC and American Academy of Pediatrics recommendations are to test infants born to mothers with suspected or confirmed SARS-CoV-2 infection.

Data on clinical characteristics of a series of hospitalized infants in Montreal was published in December 2020. The study identified infants 0-12 months old who were diagnosed or treated at a single Montreal hospital from February until May 2020. In all, 25 (2.0%) of 1,165 infants were confirmed to have SARS-CoV-2, and approximately 8 of those were hospitalized; 85% had gastrointestinal symptoms and 81% had a fever. Upper respiratory tract symptoms were present in 59%, and none of the hospitalized infants required supplemental oxygen. The data overall support the idea that infants are generally only mildly symptomatic when infected, and respiratory symptoms do not appear to be the most prevalent finding.
 

COVID-19 in children

The lack of prominent respiratory symptoms among children with SARS-CoV-2 infection symptoms was echoed in another study that evaluated more than 2,400 children in Alberta, Canada. Among the 1,987 children who tested positive for SARS-CoV-2, one-third (35.9%) were asymptomatic. Some symptoms were not helpful in differentiating children who tested positive vs. those who tested negative. The frequency of muscle or joint pain, myalgia, malaise, and respiratory symptoms such as nasal congestion, difficulty breathing, and sore throat was indistinguishable between the SARS-CoV-2–infected and –noninfected children. However, anosmia was much more prevalent (7.7%) among those who tested positive for SARS-CoV-2, compared with 1.1% of those who were negative. Headache was present in 15.7% of those who were positive vs. 6.3% of those who were negative. Fever was slightly more prevalent, at 25.5% among the positive patients and 15% of the negative patients.

The authors calculated likelihood ratios for individual symptoms and found that almost all individual symptoms had likelihood ratios of 1:1.8 for testing positive. However, nausea and vomiting had a likelihood ratio of 5.5, and for anosmia it was 7.3. The combination of symptoms of nausea, nausea and vomiting, and headache produced a likelihood ratio of nearly 66. The authors suggest that these data on ambulatory children indicate that, in general, respiratory symptoms are not helpful for distinguishing patients who are likely to be positive, although the symptoms of nausea, headache, and both along with fever can be highly predictive. The authors propose that it may be more helpful for schools to focus on identifying children with combinations of these high-yield symptoms for potential testing and exclusion from school rather than on random or isolated respiratory symptoms.
 

COVID-19 in schools

Transmission risk in different settings is certainly something parents quiz pediatricians about, so data released in January and February 2021 may help provide some context. A CDC report on the experience of 17 schools in Wisconsin from August to November 2020 is illuminating. In that study, the SARS-CoV-2 case rate in students, school teachers, and staff members was 63% of the rate in the general public at the time, suggesting that the mitigation strategies used by the schools were effective. In addition, among the students who contracted SARS-CoV-2, only 5% of cases were attributable to school exposure. No cases of SARS-CoV-2 among faculty or staff were linked to school exposure.

Indeed, data released on Feb. 2, 2021, demonstrate that younger adults are the largest source of sustaining the epidemic. On the basis of data from August to October 2020, the opening of schools does not appear to be associated with population-level changes in SARS-CoV-2–attributable deaths. For October 2020, the authors estimate that 2.7% of infections were from children 0-9 years old, 7.1% from those ages 10-19 years, but 34% from those 20-34 years old and 38% from those 35-49 years old, by far the largest two groups contributing to spread. It should be noted that ages 20-49 years are the peak working years for adults, but the source of the data did not allow the authors to conclude whether infections were work related or social activity related. Their data do suggest that prioritizing vaccination of younger working-age adults may put more of a dent in the pandemic spread than vaccinating older individuals.

In a similar vein, a systematic review and meta-analysis of recent studies looked at household transmission of SARS-CoV-2 and demonstrated an attack rate within households of 16.6%. Of note, secondary household attack rates were only 0.7% from asymptomatic cases and 18% from symptomatic cases, with spouses and adult household contacts having higher secondary attack rates than children in the household.
 

COVID-19 in student athletes

A recent MMWR report described a SARS-CoV-2 outbreak associated with a series of wrestling tournaments in Florida, held in December and January 2021. While everyone would like children to be able to participate in sports, such events potentially violate several of the precepts for preventing spread: Avoid close contact and don’t mix contacts from different schools. Moreover, the events occurred during some of the highest incident case rates in the counties where the tournaments took place.

On Dec. 4, 2020, the AAP released updated guidance for athletic activities and recommended cloth face coverings for student athletes during training, in competition, while traveling, and even while waiting on the sidelines and not actively playing. Notable exceptions to the recommendation were competitive cheerleading, gymnastics, wrestling, and water sports, where the risk for entanglement from face coverings was too high or was not practical.

Taken as a whole, the evolving data continue to show that school mitigation practices can be effective in reducing the risk for SARS-CoV-2 infection. In addition, SARS-CoV-2 rates among schoolchildren more closely mirror community rates and are probably more influenced by what happens outside the schools than inside the schools.

A version of this article first appeared on Medscape.com.

New findings suggest the Janssen/Johnson & Johnson COVID-19 vaccine can reduce the risk of an immunized person unknowingly passing along the virus to others.

Johnson & Johnson

The single-dose vaccine reduces the risk of asymptomatic transmission by 74% at 71 days, compared with placebo, according to documents released today by the U.S. Food and Drug Administration.

“The decrease in asymptomatic transmission is very welcome news too in curbing the spread of the virus,” Phyllis Tien, MD, told this news organization.

“While the earlier press release reported that the vaccine was effective against preventing severe COVID-19 disease, as well as hospitalizations and death, this new data shows that the vaccine can also decrease transmission, which is very important on a public health level,” said Dr. Tien, professor of medicine in the division of infectious diseases at the University of California, San Francisco.

“It is extremely important in terms of getting to herd immunity,” Paul Goepfert, MD, director of the Alabama Vaccine Research Clinic and infectious disease specialist at the University of Alabama, Birmingham, said in an interview. “It means that this vaccine is likely preventing subsequent transmission after a single dose, which could have huge implications once we get the majority of folks vaccinated.”

The FDA cautioned that the numbers of participants included in the study are relatively small and need to be verified. However, the Johnson & Johnson vaccine might not be the only product offering this advantage. Early data suggest that the Pfizer/BioNTech vaccine also decreases transmission, providing further evidence that the protection offered by immunization goes beyond the individual.

The new analyses were provided by the FDA in advance of its review of the Janssen/Johnson & Johnson vaccine. The agency plans to fully address the Ad26.COV2.S vaccine at its Vaccines and Related Biological Products Advisory Committee Meeting on Friday, including evaluating its safety and efficacy.

The agency’s decision on whether or not to grant emergency use authorization (EUA) to the Johnson & Johnson vaccine could come as early as Friday evening or Saturday.

In addition to the newly released data, officials are likely to discuss phase 3 data, released Jan. 29, that reveal an 85% efficacy for the vaccine against severe COVID-19 illness globally, including data from South America, South Africa, and the United States. When the analysis was restricted to data from U.S. participants, the trial showed a 73% efficacy against moderate to severe COVID-19.

If and when the FDA grants an EUA, it remains unclear how much of the new vaccine will be immediately available. Initially, Johnson & Johnson predicted 18 million doses would be ready by the end of February, but others stated the figure will be closer to 2-4 million. The manufacturer’s contract with the U.S. government stipulates production of 100-million doses by the end of June.

Dr. Tien received support from Johnson & Johnson to conduct the J&J COVID-19 vaccine trial in the SF VA HealthCare System. Dr. Goepfert has disclosed no relevant financial relationships. 

A version of this article first appeared on Medscape.com.

New findings suggest the Janssen/Johnson & Johnson COVID-19 vaccine can reduce the risk of an immunized person unknowingly passing along the virus to others.

Johnson & Johnson

The single-dose vaccine reduces the risk of asymptomatic transmission by 74% at 71 days, compared with placebo, according to documents released today by the U.S. Food and Drug Administration.

“The decrease in asymptomatic transmission is very welcome news too in curbing the spread of the virus,” Phyllis Tien, MD, told this news organization.

“While the earlier press release reported that the vaccine was effective against preventing severe COVID-19 disease, as well as hospitalizations and death, this new data shows that the vaccine can also decrease transmission, which is very important on a public health level,” said Dr. Tien, professor of medicine in the division of infectious diseases at the University of California, San Francisco.

“It is extremely important in terms of getting to herd immunity,” Paul Goepfert, MD, director of the Alabama Vaccine Research Clinic and infectious disease specialist at the University of Alabama, Birmingham, said in an interview. “It means that this vaccine is likely preventing subsequent transmission after a single dose, which could have huge implications once we get the majority of folks vaccinated.”

The FDA cautioned that the numbers of participants included in the study are relatively small and need to be verified. However, the Johnson & Johnson vaccine might not be the only product offering this advantage. Early data suggest that the Pfizer/BioNTech vaccine also decreases transmission, providing further evidence that the protection offered by immunization goes beyond the individual.

The new analyses were provided by the FDA in advance of its review of the Janssen/Johnson & Johnson vaccine. The agency plans to fully address the Ad26.COV2.S vaccine at its Vaccines and Related Biological Products Advisory Committee Meeting on Friday, including evaluating its safety and efficacy.

The agency’s decision on whether or not to grant emergency use authorization (EUA) to the Johnson & Johnson vaccine could come as early as Friday evening or Saturday.

In addition to the newly released data, officials are likely to discuss phase 3 data, released Jan. 29, that reveal an 85% efficacy for the vaccine against severe COVID-19 illness globally, including data from South America, South Africa, and the United States. When the analysis was restricted to data from U.S. participants, the trial showed a 73% efficacy against moderate to severe COVID-19.

If and when the FDA grants an EUA, it remains unclear how much of the new vaccine will be immediately available. Initially, Johnson & Johnson predicted 18 million doses would be ready by the end of February, but others stated the figure will be closer to 2-4 million. The manufacturer’s contract with the U.S. government stipulates production of 100-million doses by the end of June.

Dr. Tien received support from Johnson & Johnson to conduct the J&J COVID-19 vaccine trial in the SF VA HealthCare System. Dr. Goepfert has disclosed no relevant financial relationships. 

A version of this article first appeared on Medscape.com.

New findings suggest the Janssen/Johnson & Johnson COVID-19 vaccine can reduce the risk of an immunized person unknowingly passing along the virus to others.

Johnson & Johnson

The single-dose vaccine reduces the risk of asymptomatic transmission by 74% at 71 days, compared with placebo, according to documents released today by the U.S. Food and Drug Administration.

“The decrease in asymptomatic transmission is very welcome news too in curbing the spread of the virus,” Phyllis Tien, MD, told this news organization.

“While the earlier press release reported that the vaccine was effective against preventing severe COVID-19 disease, as well as hospitalizations and death, this new data shows that the vaccine can also decrease transmission, which is very important on a public health level,” said Dr. Tien, professor of medicine in the division of infectious diseases at the University of California, San Francisco.

“It is extremely important in terms of getting to herd immunity,” Paul Goepfert, MD, director of the Alabama Vaccine Research Clinic and infectious disease specialist at the University of Alabama, Birmingham, said in an interview. “It means that this vaccine is likely preventing subsequent transmission after a single dose, which could have huge implications once we get the majority of folks vaccinated.”

The FDA cautioned that the numbers of participants included in the study are relatively small and need to be verified. However, the Johnson & Johnson vaccine might not be the only product offering this advantage. Early data suggest that the Pfizer/BioNTech vaccine also decreases transmission, providing further evidence that the protection offered by immunization goes beyond the individual.

The new analyses were provided by the FDA in advance of its review of the Janssen/Johnson & Johnson vaccine. The agency plans to fully address the Ad26.COV2.S vaccine at its Vaccines and Related Biological Products Advisory Committee Meeting on Friday, including evaluating its safety and efficacy.

The agency’s decision on whether or not to grant emergency use authorization (EUA) to the Johnson & Johnson vaccine could come as early as Friday evening or Saturday.

In addition to the newly released data, officials are likely to discuss phase 3 data, released Jan. 29, that reveal an 85% efficacy for the vaccine against severe COVID-19 illness globally, including data from South America, South Africa, and the United States. When the analysis was restricted to data from U.S. participants, the trial showed a 73% efficacy against moderate to severe COVID-19.

If and when the FDA grants an EUA, it remains unclear how much of the new vaccine will be immediately available. Initially, Johnson & Johnson predicted 18 million doses would be ready by the end of February, but others stated the figure will be closer to 2-4 million. The manufacturer’s contract with the U.S. government stipulates production of 100-million doses by the end of June.

Dr. Tien received support from Johnson & Johnson to conduct the J&J COVID-19 vaccine trial in the SF VA HealthCare System. Dr. Goepfert has disclosed no relevant financial relationships. 

A version of this article first appeared on Medscape.com.

I think there are multiple factors explaining why the percentage of family physicians treating children declined again. Not the least of these is that pediatricians have a very limited scope of practice and need to market and attract patients, which they do quite a bit. There are even pediatric urgent care centers popping up all over the place now, some likely funded by venture capital just as other urgent care centers have been funded.

The loss of pediatric inpatient volume because of the effectiveness of vaccines that prevent many bacterial and viral illnesses means that fewer pediatric graduates are spending time in the hospital.

Family doctors used to retain their pediatric patients by delivering babies, seeing them in the newborn nursery, and beginning their relationship with the kids there. FPs are delivering fewer babies and the subsequent reduction in new kids in their practices has been a factor in this as well.

Finally, in multispecialty practices, pediatricians are employed there. Families immediately assume that their kids should be going to the pediatricians, not the family doctors. We need to keep talking up the fact that we take care of whole families to retain our pediatric practices.

Neil S. Calman, MD, is president and chief executive officer of the Institute for Family Health and is professor and chair of the Alfred and Gail Engelberg department of family medicine and community health at the Icahn School of Medicine at Mount Sinai and the Mount Sinai Health System, both in New York. Dr. Calman also serves on the editorial advisory board of Family Practice News.

I think there are multiple factors explaining why the percentage of family physicians treating children declined again. Not the least of these is that pediatricians have a very limited scope of practice and need to market and attract patients, which they do quite a bit. There are even pediatric urgent care centers popping up all over the place now, some likely funded by venture capital just as other urgent care centers have been funded.

The loss of pediatric inpatient volume because of the effectiveness of vaccines that prevent many bacterial and viral illnesses means that fewer pediatric graduates are spending time in the hospital.

Family doctors used to retain their pediatric patients by delivering babies, seeing them in the newborn nursery, and beginning their relationship with the kids there. FPs are delivering fewer babies and the subsequent reduction in new kids in their practices has been a factor in this as well.

Finally, in multispecialty practices, pediatricians are employed there. Families immediately assume that their kids should be going to the pediatricians, not the family doctors. We need to keep talking up the fact that we take care of whole families to retain our pediatric practices.

Neil S. Calman, MD, is president and chief executive officer of the Institute for Family Health and is professor and chair of the Alfred and Gail Engelberg department of family medicine and community health at the Icahn School of Medicine at Mount Sinai and the Mount Sinai Health System, both in New York. Dr. Calman also serves on the editorial advisory board of Family Practice News.

I think there are multiple factors explaining why the percentage of family physicians treating children declined again. Not the least of these is that pediatricians have a very limited scope of practice and need to market and attract patients, which they do quite a bit. There are even pediatric urgent care centers popping up all over the place now, some likely funded by venture capital just as other urgent care centers have been funded.

The loss of pediatric inpatient volume because of the effectiveness of vaccines that prevent many bacterial and viral illnesses means that fewer pediatric graduates are spending time in the hospital.

Family doctors used to retain their pediatric patients by delivering babies, seeing them in the newborn nursery, and beginning their relationship with the kids there. FPs are delivering fewer babies and the subsequent reduction in new kids in their practices has been a factor in this as well.

Finally, in multispecialty practices, pediatricians are employed there. Families immediately assume that their kids should be going to the pediatricians, not the family doctors. We need to keep talking up the fact that we take care of whole families to retain our pediatric practices.

Neil S. Calman, MD, is president and chief executive officer of the Institute for Family Health and is professor and chair of the Alfred and Gail Engelberg department of family medicine and community health at the Icahn School of Medicine at Mount Sinai and the Mount Sinai Health System, both in New York. Dr. Calman also serves on the editorial advisory board of Family Practice News.

After 15 years of limping and a gradual downhill slide in mobility, recreational walking had become uncomfortable enough that I’ve decided to shed my proudly worn cloak of denial and seek help. Even I could see that the x-ray made a total knee replacement the only option for some return to near normalcy. Scheduling a total knee replacement became a no-brainer.

My decision to accept the risks to reap the benefits of surgery is small potatoes compared with the decisions that the parents of a child born with a deformed lower extremity must face. In the Family Partnerships section of the February 2021 issue of Pediatrics you will find a heart-wrenching story of a family who embarked on what turned out to be painful and frustrating journey to lengthen their daughter’s congenitally deficient leg. In their own words, the mother and daughter describe how neither of them were prepared for the pain and life-altering complications the daughter has endured. Influenced by the optimism exuded by surgeons, the family gave little thought to the magnitude of the decision they were being asked to make. One has to wonder in retrospect if a well-timed amputation and prosthesis might have been a better decision. However, the thought of removing an extremity, even one that isn’t fully functional, is not one that most of us like to consider.

Over the last several decades I have read stories about people – usually athletes – born with short or deformed lower extremities who have faced the decision of amputation. I recall one college-age young man who despite his deformity and with the help of a prosthesis was a competitive multisport athlete. However, it became clear that his deformed foot was preventing him from accessing the most advanced prosthetic technology. Although he was highly motivated, he described his struggle with the decision to part with a portion of his body that despite its appearance and dysfunction had been with him since birth. On the other hand, I have read stories of young people who had become so frustrated by their deformity that they were more than eager to undergo amputation despite the concerns of their parents.

Early in my career I encountered a 3-year-old with phocomelia whose family was visiting from out of town and had come to our clinic because his older sibling was sick. The youngster, as I recall, had only one complete extremity, an arm. Like most 3-year-olds, he was driven to explore at breakneck speed. I will never forget watching him streak back and forth the length of our linoleum covered hallway like a crab skittering along the beach. His mother described how she and his well-meaning physicians were struggling unsuccessfully to get him to accept prostheses. Later I learned that his resistance is shared by many of the survivors of the thalidomide disaster who felt that the most frustrating period in their lives came when, again well-meaning, caregivers had tried to make them look and function more normally by fitting them with prostheses.

These anecdotal observations make clear a philosophy that we should have already internalized. In most clinic decisions the patient, pretty much regardless of age, should be a full participant in the process. And, to do this the patient and his or her family must be as informed as possible. Managing the aftermath of a traumatic amputation presents it own special set of challenges, but when it comes to elective amputation or prosthetic application for a congenital deficiency it is dangerous for us to insert our personal bias into the decision making.
 

Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at pdnews@mdedge.com.

After 15 years of limping and a gradual downhill slide in mobility, recreational walking had become uncomfortable enough that I’ve decided to shed my proudly worn cloak of denial and seek help. Even I could see that the x-ray made a total knee replacement the only option for some return to near normalcy. Scheduling a total knee replacement became a no-brainer.

My decision to accept the risks to reap the benefits of surgery is small potatoes compared with the decisions that the parents of a child born with a deformed lower extremity must face. In the Family Partnerships section of the February 2021 issue of Pediatrics you will find a heart-wrenching story of a family who embarked on what turned out to be painful and frustrating journey to lengthen their daughter’s congenitally deficient leg. In their own words, the mother and daughter describe how neither of them were prepared for the pain and life-altering complications the daughter has endured. Influenced by the optimism exuded by surgeons, the family gave little thought to the magnitude of the decision they were being asked to make. One has to wonder in retrospect if a well-timed amputation and prosthesis might have been a better decision. However, the thought of removing an extremity, even one that isn’t fully functional, is not one that most of us like to consider.

Over the last several decades I have read stories about people – usually athletes – born with short or deformed lower extremities who have faced the decision of amputation. I recall one college-age young man who despite his deformity and with the help of a prosthesis was a competitive multisport athlete. However, it became clear that his deformed foot was preventing him from accessing the most advanced prosthetic technology. Although he was highly motivated, he described his struggle with the decision to part with a portion of his body that despite its appearance and dysfunction had been with him since birth. On the other hand, I have read stories of young people who had become so frustrated by their deformity that they were more than eager to undergo amputation despite the concerns of their parents.

Early in my career I encountered a 3-year-old with phocomelia whose family was visiting from out of town and had come to our clinic because his older sibling was sick. The youngster, as I recall, had only one complete extremity, an arm. Like most 3-year-olds, he was driven to explore at breakneck speed. I will never forget watching him streak back and forth the length of our linoleum covered hallway like a crab skittering along the beach. His mother described how she and his well-meaning physicians were struggling unsuccessfully to get him to accept prostheses. Later I learned that his resistance is shared by many of the survivors of the thalidomide disaster who felt that the most frustrating period in their lives came when, again well-meaning, caregivers had tried to make them look and function more normally by fitting them with prostheses.

These anecdotal observations make clear a philosophy that we should have already internalized. In most clinic decisions the patient, pretty much regardless of age, should be a full participant in the process. And, to do this the patient and his or her family must be as informed as possible. Managing the aftermath of a traumatic amputation presents it own special set of challenges, but when it comes to elective amputation or prosthetic application for a congenital deficiency it is dangerous for us to insert our personal bias into the decision making.
 

Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at pdnews@mdedge.com.

After 15 years of limping and a gradual downhill slide in mobility, recreational walking had become uncomfortable enough that I’ve decided to shed my proudly worn cloak of denial and seek help. Even I could see that the x-ray made a total knee replacement the only option for some return to near normalcy. Scheduling a total knee replacement became a no-brainer.

My decision to accept the risks to reap the benefits of surgery is small potatoes compared with the decisions that the parents of a child born with a deformed lower extremity must face. In the Family Partnerships section of the February 2021 issue of Pediatrics you will find a heart-wrenching story of a family who embarked on what turned out to be painful and frustrating journey to lengthen their daughter’s congenitally deficient leg. In their own words, the mother and daughter describe how neither of them were prepared for the pain and life-altering complications the daughter has endured. Influenced by the optimism exuded by surgeons, the family gave little thought to the magnitude of the decision they were being asked to make. One has to wonder in retrospect if a well-timed amputation and prosthesis might have been a better decision. However, the thought of removing an extremity, even one that isn’t fully functional, is not one that most of us like to consider.

Over the last several decades I have read stories about people – usually athletes – born with short or deformed lower extremities who have faced the decision of amputation. I recall one college-age young man who despite his deformity and with the help of a prosthesis was a competitive multisport athlete. However, it became clear that his deformed foot was preventing him from accessing the most advanced prosthetic technology. Although he was highly motivated, he described his struggle with the decision to part with a portion of his body that despite its appearance and dysfunction had been with him since birth. On the other hand, I have read stories of young people who had become so frustrated by their deformity that they were more than eager to undergo amputation despite the concerns of their parents.

Early in my career I encountered a 3-year-old with phocomelia whose family was visiting from out of town and had come to our clinic because his older sibling was sick. The youngster, as I recall, had only one complete extremity, an arm. Like most 3-year-olds, he was driven to explore at breakneck speed. I will never forget watching him streak back and forth the length of our linoleum covered hallway like a crab skittering along the beach. His mother described how she and his well-meaning physicians were struggling unsuccessfully to get him to accept prostheses. Later I learned that his resistance is shared by many of the survivors of the thalidomide disaster who felt that the most frustrating period in their lives came when, again well-meaning, caregivers had tried to make them look and function more normally by fitting them with prostheses.

These anecdotal observations make clear a philosophy that we should have already internalized. In most clinic decisions the patient, pretty much regardless of age, should be a full participant in the process. And, to do this the patient and his or her family must be as informed as possible. Managing the aftermath of a traumatic amputation presents it own special set of challenges, but when it comes to elective amputation or prosthetic application for a congenital deficiency it is dangerous for us to insert our personal bias into the decision making.
 

Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at pdnews@mdedge.com.

Researchers have developed a proprietary computer adaptive screening tool that may help emergency departments more accurately predict suicide attempts in adolescents, according to a recent study in JAMA Psychiatry.

The computerized adaptive screen for suicidal youth (CASSY) had an area under the curve (AUC) of 0.87 in an independent validation cohort that predicted an adolescent suicide attempt within 3 months, according to Cheryl A. King, PhD, of the department of psychiatry at the University of Michigan in Ann Arbor, and colleagues. CASSY’s adaptive design, which presents different questions based on a respondent’s answers, means “an individual’s initial item responses are used to determine a provisional estimate of their standing on the measured trait,” the researchers said.

Dr. King and colleagues evaluated the CASSY algorithm in a first study that consisted of 2,845 adolescents who were mean 15.1 years old, mostly girls (63%) enrolled from 13 different emergency departments across the United States within the Pediatric Emergency Care Applied Research Network (PECARN) between June 2015 and July 2016. To develop the CASSY algorithm, the participants received a 92-item self-report survey at baseline with three “anchor” questions from the Ask Suicide-Screening Questions (ASQ) and Columbia–Suicide Severity Rating Scale (C-SSRS). Based on the answers to the baseline survey, the researchers categorized participants as being at low, medium, or high risk for a suicide attempt, and followed participants for 3 months to record suicide attempts reported by a patient or parent.

Retention of participants at 3 months was 72.9%, leaving data available for 2,075 adolescents for review. The researchers found that the AUC was 0.89 (95% confidence interval, 0.85-0.91) in the first study, with a sensitivity of 82.4% and a specificity of 80%. Participants answered a mean number of 11 items during an assessment (range, 5-21 items) administered in a median time of 1 minute, 24 seconds.

In a second study consisting of a validation cohort, 4,050 adolescents from 14 PECARN emergency departments and 1 Indian Health Service hospital were followed, with a retention of 2,754 participants (69.5%) at the end of 3 months. Of the adolescents available at the end of 3 months, 62.1% were girls with a mean age of 15.0 years. The AUC for this validation group was 0.87 (95% CI, 0.85-0.89). Of these participants, 71.5% reported no previous suicide attempts, 9% reported one prior attempt, 18.2% reported multiple attempts, and 1.2% had an unknown number of suicide attempts. During the 3-month window of the second study, 6.0% of participants had at least one suicide attempt.

The researchers said that while the CASSY instrument may be advantageous for some emergency departments, “a standard screen such as the ASQ, which consists of fewer items, may be preferred in some settings, particularly those in which the cost and technical setup of a computerized adaptive screen poses too high a barrier.”

“Important next steps will be to measure the CASSY’s test-retest reliability and develop triage recommendations and conduct implementation studies,” Dr. King and colleagues concluded.
 

Climbing adolescent suicide rate

In an interview, Igor Galynker, MD, PhD, professor in the department of psychiatry, and director of the suicide lab and the Zirinsky Center for Bipolar Disorder at the Icahn School of Medicine at Mount Sinai, New York, said the study by Dr. King and colleagues is important during a time when the suicide rate for adolescents is substantially increasing.

According to data from the CDC’s Web-based Injury Statistics Query and Reporting System, 1,750 adolescents died of suicide in 2018, and the rate of deaths by suicide has increased by 62% since the year 2000. “The issue really needs to be addressed,” said Dr. Galynker, who was not involved with the study.

Some methods of screening suicidal ideation that open with a direct question can miss suicide attempts in individuals who do not express these suicidal ideations, he explained, and the problem can be magnified in adolescent patients. “This is particularly difficult with adolescents because they’re notoriously poor historians. They cannot describe their feelings as well. It’s even more important to have methods that work for suicide prevention for adolescents and to support those predictors which do not rely on self-report,” he said.

Dr. Galynker said that CASSY is innovative because asking whether the patient is suicidal is not the “gateway question” and does not categorize people into groups determined to be at low, medium, or high risk for a suicide attempt.

“When you categorize people – adolescents in this particular case – you remove clinical judgment from [the] clinician. You deprive [the] clinician of exercising their clinical judgment in terms of somebody is or is not likely to die by suicide. That’s a serious problem,” he said, noting it may be one reason why these screening tools have difficulty identifying patients at risk of suicide.

Regarding limitations, the 3-month follow-up window for patients in the study may be too long to be clinically meaningful.

“If somebody is in treatment, 3 months is a long time. You want to know whether somebody is going to attempt suicide before the next time you see them, which is usually a month or a week,” he said.

But a strength of the CASSY instrument, Dr. Galynker said, is its ability to capture the patient’s mental state in the moment, as opposed to relying only a patient’s electronic medical record. The study also demonstrates “it should be possible to introduce detailed suicide risk assessment in the emergency rooms, and [it] should be done,” he said.

This study was funded with support from the Health Resources and Services Administration, the Maternal and Child Health Bureau, and the Emergency Medical Services for Children Network Development Demonstration Program, and a grant by the National Institute of Mental Health for the Emergency Department Screen for Teens at Risk for Suicide. Twelve authors reported personal and institutional relationships in the form of fees, grants, consultancies, royalties, copyrighted work, founding of technologies, and scientific council memberships for a variety of agencies, societies, foundations, and other organizations inside and outside of the study. Dr. Galynker reported his work unrelated to the study is supported by the National Institute of Mental Health and the American Foundation for Suicide Prevention. But he has no proprietary interests.
 

cpnews@mdedge.com

Researchers have developed a proprietary computer adaptive screening tool that may help emergency departments more accurately predict suicide attempts in adolescents, according to a recent study in JAMA Psychiatry.

The computerized adaptive screen for suicidal youth (CASSY) had an area under the curve (AUC) of 0.87 in an independent validation cohort that predicted an adolescent suicide attempt within 3 months, according to Cheryl A. King, PhD, of the department of psychiatry at the University of Michigan in Ann Arbor, and colleagues. CASSY’s adaptive design, which presents different questions based on a respondent’s answers, means “an individual’s initial item responses are used to determine a provisional estimate of their standing on the measured trait,” the researchers said.

Dr. King and colleagues evaluated the CASSY algorithm in a first study that consisted of 2,845 adolescents who were mean 15.1 years old, mostly girls (63%) enrolled from 13 different emergency departments across the United States within the Pediatric Emergency Care Applied Research Network (PECARN) between June 2015 and July 2016. To develop the CASSY algorithm, the participants received a 92-item self-report survey at baseline with three “anchor” questions from the Ask Suicide-Screening Questions (ASQ) and Columbia–Suicide Severity Rating Scale (C-SSRS). Based on the answers to the baseline survey, the researchers categorized participants as being at low, medium, or high risk for a suicide attempt, and followed participants for 3 months to record suicide attempts reported by a patient or parent.

Retention of participants at 3 months was 72.9%, leaving data available for 2,075 adolescents for review. The researchers found that the AUC was 0.89 (95% confidence interval, 0.85-0.91) in the first study, with a sensitivity of 82.4% and a specificity of 80%. Participants answered a mean number of 11 items during an assessment (range, 5-21 items) administered in a median time of 1 minute, 24 seconds.

In a second study consisting of a validation cohort, 4,050 adolescents from 14 PECARN emergency departments and 1 Indian Health Service hospital were followed, with a retention of 2,754 participants (69.5%) at the end of 3 months. Of the adolescents available at the end of 3 months, 62.1% were girls with a mean age of 15.0 years. The AUC for this validation group was 0.87 (95% CI, 0.85-0.89). Of these participants, 71.5% reported no previous suicide attempts, 9% reported one prior attempt, 18.2% reported multiple attempts, and 1.2% had an unknown number of suicide attempts. During the 3-month window of the second study, 6.0% of participants had at least one suicide attempt.

The researchers said that while the CASSY instrument may be advantageous for some emergency departments, “a standard screen such as the ASQ, which consists of fewer items, may be preferred in some settings, particularly those in which the cost and technical setup of a computerized adaptive screen poses too high a barrier.”

“Important next steps will be to measure the CASSY’s test-retest reliability and develop triage recommendations and conduct implementation studies,” Dr. King and colleagues concluded.
 

Climbing adolescent suicide rate

In an interview, Igor Galynker, MD, PhD, professor in the department of psychiatry, and director of the suicide lab and the Zirinsky Center for Bipolar Disorder at the Icahn School of Medicine at Mount Sinai, New York, said the study by Dr. King and colleagues is important during a time when the suicide rate for adolescents is substantially increasing.

According to data from the CDC’s Web-based Injury Statistics Query and Reporting System, 1,750 adolescents died of suicide in 2018, and the rate of deaths by suicide has increased by 62% since the year 2000. “The issue really needs to be addressed,” said Dr. Galynker, who was not involved with the study.

Some methods of screening suicidal ideation that open with a direct question can miss suicide attempts in individuals who do not express these suicidal ideations, he explained, and the problem can be magnified in adolescent patients. “This is particularly difficult with adolescents because they’re notoriously poor historians. They cannot describe their feelings as well. It’s even more important to have methods that work for suicide prevention for adolescents and to support those predictors which do not rely on self-report,” he said.

Dr. Galynker said that CASSY is innovative because asking whether the patient is suicidal is not the “gateway question” and does not categorize people into groups determined to be at low, medium, or high risk for a suicide attempt.

“When you categorize people – adolescents in this particular case – you remove clinical judgment from [the] clinician. You deprive [the] clinician of exercising their clinical judgment in terms of somebody is or is not likely to die by suicide. That’s a serious problem,” he said, noting it may be one reason why these screening tools have difficulty identifying patients at risk of suicide.

Regarding limitations, the 3-month follow-up window for patients in the study may be too long to be clinically meaningful.

“If somebody is in treatment, 3 months is a long time. You want to know whether somebody is going to attempt suicide before the next time you see them, which is usually a month or a week,” he said.

But a strength of the CASSY instrument, Dr. Galynker said, is its ability to capture the patient’s mental state in the moment, as opposed to relying only a patient’s electronic medical record. The study also demonstrates “it should be possible to introduce detailed suicide risk assessment in the emergency rooms, and [it] should be done,” he said.

This study was funded with support from the Health Resources and Services Administration, the Maternal and Child Health Bureau, and the Emergency Medical Services for Children Network Development Demonstration Program, and a grant by the National Institute of Mental Health for the Emergency Department Screen for Teens at Risk for Suicide. Twelve authors reported personal and institutional relationships in the form of fees, grants, consultancies, royalties, copyrighted work, founding of technologies, and scientific council memberships for a variety of agencies, societies, foundations, and other organizations inside and outside of the study. Dr. Galynker reported his work unrelated to the study is supported by the National Institute of Mental Health and the American Foundation for Suicide Prevention. But he has no proprietary interests.
 

cpnews@mdedge.com

Researchers have developed a proprietary computer adaptive screening tool that may help emergency departments more accurately predict suicide attempts in adolescents, according to a recent study in JAMA Psychiatry.

The computerized adaptive screen for suicidal youth (CASSY) had an area under the curve (AUC) of 0.87 in an independent validation cohort that predicted an adolescent suicide attempt within 3 months, according to Cheryl A. King, PhD, of the department of psychiatry at the University of Michigan in Ann Arbor, and colleagues. CASSY’s adaptive design, which presents different questions based on a respondent’s answers, means “an individual’s initial item responses are used to determine a provisional estimate of their standing on the measured trait,” the researchers said.

Dr. King and colleagues evaluated the CASSY algorithm in a first study that consisted of 2,845 adolescents who were mean 15.1 years old, mostly girls (63%) enrolled from 13 different emergency departments across the United States within the Pediatric Emergency Care Applied Research Network (PECARN) between June 2015 and July 2016. To develop the CASSY algorithm, the participants received a 92-item self-report survey at baseline with three “anchor” questions from the Ask Suicide-Screening Questions (ASQ) and Columbia–Suicide Severity Rating Scale (C-SSRS). Based on the answers to the baseline survey, the researchers categorized participants as being at low, medium, or high risk for a suicide attempt, and followed participants for 3 months to record suicide attempts reported by a patient or parent.

Retention of participants at 3 months was 72.9%, leaving data available for 2,075 adolescents for review. The researchers found that the AUC was 0.89 (95% confidence interval, 0.85-0.91) in the first study, with a sensitivity of 82.4% and a specificity of 80%. Participants answered a mean number of 11 items during an assessment (range, 5-21 items) administered in a median time of 1 minute, 24 seconds.

In a second study consisting of a validation cohort, 4,050 adolescents from 14 PECARN emergency departments and 1 Indian Health Service hospital were followed, with a retention of 2,754 participants (69.5%) at the end of 3 months. Of the adolescents available at the end of 3 months, 62.1% were girls with a mean age of 15.0 years. The AUC for this validation group was 0.87 (95% CI, 0.85-0.89). Of these participants, 71.5% reported no previous suicide attempts, 9% reported one prior attempt, 18.2% reported multiple attempts, and 1.2% had an unknown number of suicide attempts. During the 3-month window of the second study, 6.0% of participants had at least one suicide attempt.

The researchers said that while the CASSY instrument may be advantageous for some emergency departments, “a standard screen such as the ASQ, which consists of fewer items, may be preferred in some settings, particularly those in which the cost and technical setup of a computerized adaptive screen poses too high a barrier.”

“Important next steps will be to measure the CASSY’s test-retest reliability and develop triage recommendations and conduct implementation studies,” Dr. King and colleagues concluded.
 

Climbing adolescent suicide rate

In an interview, Igor Galynker, MD, PhD, professor in the department of psychiatry, and director of the suicide lab and the Zirinsky Center for Bipolar Disorder at the Icahn School of Medicine at Mount Sinai, New York, said the study by Dr. King and colleagues is important during a time when the suicide rate for adolescents is substantially increasing.

According to data from the CDC’s Web-based Injury Statistics Query and Reporting System, 1,750 adolescents died of suicide in 2018, and the rate of deaths by suicide has increased by 62% since the year 2000. “The issue really needs to be addressed,” said Dr. Galynker, who was not involved with the study.

Some methods of screening suicidal ideation that open with a direct question can miss suicide attempts in individuals who do not express these suicidal ideations, he explained, and the problem can be magnified in adolescent patients. “This is particularly difficult with adolescents because they’re notoriously poor historians. They cannot describe their feelings as well. It’s even more important to have methods that work for suicide prevention for adolescents and to support those predictors which do not rely on self-report,” he said.

Dr. Galynker said that CASSY is innovative because asking whether the patient is suicidal is not the “gateway question” and does not categorize people into groups determined to be at low, medium, or high risk for a suicide attempt.

“When you categorize people – adolescents in this particular case – you remove clinical judgment from [the] clinician. You deprive [the] clinician of exercising their clinical judgment in terms of somebody is or is not likely to die by suicide. That’s a serious problem,” he said, noting it may be one reason why these screening tools have difficulty identifying patients at risk of suicide.

Regarding limitations, the 3-month follow-up window for patients in the study may be too long to be clinically meaningful.

“If somebody is in treatment, 3 months is a long time. You want to know whether somebody is going to attempt suicide before the next time you see them, which is usually a month or a week,” he said.

But a strength of the CASSY instrument, Dr. Galynker said, is its ability to capture the patient’s mental state in the moment, as opposed to relying only a patient’s electronic medical record. The study also demonstrates “it should be possible to introduce detailed suicide risk assessment in the emergency rooms, and [it] should be done,” he said.

This study was funded with support from the Health Resources and Services Administration, the Maternal and Child Health Bureau, and the Emergency Medical Services for Children Network Development Demonstration Program, and a grant by the National Institute of Mental Health for the Emergency Department Screen for Teens at Risk for Suicide. Twelve authors reported personal and institutional relationships in the form of fees, grants, consultancies, royalties, copyrighted work, founding of technologies, and scientific council memberships for a variety of agencies, societies, foundations, and other organizations inside and outside of the study. Dr. Galynker reported his work unrelated to the study is supported by the National Institute of Mental Health and the American Foundation for Suicide Prevention. But he has no proprietary interests.
 

cpnews@mdedge.com

In a time when this country is struggling to find topics on which we can achieve broad consensus, the question of whether in-class learning is important stands as an outlier. Parents, teachers, students, and pediatricians all agree that having children learn in a social, face-to-face environment is critical to their education and mental health. Because school has become a de facto daycare source for many families, employers have joined in the chorus supporting a return to in-class education.

Of course, beyond that basic point of agreement the myriad of questions relating to when and how that return to the educational norm can be achieved we divide into groups with almost as many answers as there are questions. Part of the problem stems from the national leadership vacuum that fed the confusion. In this void the topic of school reopening has become politicized.

On Jan. 5, 2021, the American Academy of Pediatrics released an updated interim COVID-19 Guidance for Safe Schools at services.aap.org. It is a thorough and well thought out document that should function as a roadmap for communities and pediatricians who serve as official and unofficial advisers to their local school departments. At the very outset it reminds us that “school transmission mirrors but does not drive community transmission.”

Unfortunately, timing is everything and while the document’s salient points received some media attention it was mostly buried by the tsunami of press coverage in the wake of the storming of the Capitol the next day and the postinauguration reshuffling of the federal government. Even if it had been released on one of those seldom seen quiet news days, I fear the document’s message encouraging the return to in-class learning would have still not received the attention it deserved.

The lack of a high-visibility celebrity spokesperson and a system of short-tenure presidencies puts the AAP at a disadvantage when it comes to getting its message across to a national audience. The advocacy role filters down to those of us in our own communities who must convince school boards that not only is in-class learning critical but there are safe ways to do it.

In some communities the timing of return to in-class learning may pit pediatricians against teachers. Usually, these two groups share an enthusiastic advocacy for children. However, facing what has up to this point been a poorly defined health risk, teachers are understandably resistant to return to the classroom although they acknowledge its importance.

Armed with the AAP’s guidance document, pediatricians should encourage school boards and state and local health departments to look closely at the epidemiologic evidence and consider creative ways to prioritize teachers for what currently are limited and erratic vaccine supplies. Strategies might include offering vaccines to teachers based strictly on their age and/or health status. However, teachers and in-class education are so critical to the educational process and the national economy that an open offer to all teachers makes more sense.

While some states have already prioritized teachers for vaccines, the AAP must continue to speak loudly that in-class education is critical and urge all states to do what is necessary to make teachers feel safe to return to the classroom.

Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at pdnews@mdedge.com.

In a time when this country is struggling to find topics on which we can achieve broad consensus, the question of whether in-class learning is important stands as an outlier. Parents, teachers, students, and pediatricians all agree that having children learn in a social, face-to-face environment is critical to their education and mental health. Because school has become a de facto daycare source for many families, employers have joined in the chorus supporting a return to in-class education.

Of course, beyond that basic point of agreement the myriad of questions relating to when and how that return to the educational norm can be achieved we divide into groups with almost as many answers as there are questions. Part of the problem stems from the national leadership vacuum that fed the confusion. In this void the topic of school reopening has become politicized.

On Jan. 5, 2021, the American Academy of Pediatrics released an updated interim COVID-19 Guidance for Safe Schools at services.aap.org. It is a thorough and well thought out document that should function as a roadmap for communities and pediatricians who serve as official and unofficial advisers to their local school departments. At the very outset it reminds us that “school transmission mirrors but does not drive community transmission.”

Unfortunately, timing is everything and while the document’s salient points received some media attention it was mostly buried by the tsunami of press coverage in the wake of the storming of the Capitol the next day and the postinauguration reshuffling of the federal government. Even if it had been released on one of those seldom seen quiet news days, I fear the document’s message encouraging the return to in-class learning would have still not received the attention it deserved.

The lack of a high-visibility celebrity spokesperson and a system of short-tenure presidencies puts the AAP at a disadvantage when it comes to getting its message across to a national audience. The advocacy role filters down to those of us in our own communities who must convince school boards that not only is in-class learning critical but there are safe ways to do it.

In some communities the timing of return to in-class learning may pit pediatricians against teachers. Usually, these two groups share an enthusiastic advocacy for children. However, facing what has up to this point been a poorly defined health risk, teachers are understandably resistant to return to the classroom although they acknowledge its importance.

Armed with the AAP’s guidance document, pediatricians should encourage school boards and state and local health departments to look closely at the epidemiologic evidence and consider creative ways to prioritize teachers for what currently are limited and erratic vaccine supplies. Strategies might include offering vaccines to teachers based strictly on their age and/or health status. However, teachers and in-class education are so critical to the educational process and the national economy that an open offer to all teachers makes more sense.

While some states have already prioritized teachers for vaccines, the AAP must continue to speak loudly that in-class education is critical and urge all states to do what is necessary to make teachers feel safe to return to the classroom.

Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at pdnews@mdedge.com.

In a time when this country is struggling to find topics on which we can achieve broad consensus, the question of whether in-class learning is important stands as an outlier. Parents, teachers, students, and pediatricians all agree that having children learn in a social, face-to-face environment is critical to their education and mental health. Because school has become a de facto daycare source for many families, employers have joined in the chorus supporting a return to in-class education.

Of course, beyond that basic point of agreement the myriad of questions relating to when and how that return to the educational norm can be achieved we divide into groups with almost as many answers as there are questions. Part of the problem stems from the national leadership vacuum that fed the confusion. In this void the topic of school reopening has become politicized.

On Jan. 5, 2021, the American Academy of Pediatrics released an updated interim COVID-19 Guidance for Safe Schools at services.aap.org. It is a thorough and well thought out document that should function as a roadmap for communities and pediatricians who serve as official and unofficial advisers to their local school departments. At the very outset it reminds us that “school transmission mirrors but does not drive community transmission.”

Unfortunately, timing is everything and while the document’s salient points received some media attention it was mostly buried by the tsunami of press coverage in the wake of the storming of the Capitol the next day and the postinauguration reshuffling of the federal government. Even if it had been released on one of those seldom seen quiet news days, I fear the document’s message encouraging the return to in-class learning would have still not received the attention it deserved.

The lack of a high-visibility celebrity spokesperson and a system of short-tenure presidencies puts the AAP at a disadvantage when it comes to getting its message across to a national audience. The advocacy role filters down to those of us in our own communities who must convince school boards that not only is in-class learning critical but there are safe ways to do it.

In some communities the timing of return to in-class learning may pit pediatricians against teachers. Usually, these two groups share an enthusiastic advocacy for children. However, facing what has up to this point been a poorly defined health risk, teachers are understandably resistant to return to the classroom although they acknowledge its importance.

Armed with the AAP’s guidance document, pediatricians should encourage school boards and state and local health departments to look closely at the epidemiologic evidence and consider creative ways to prioritize teachers for what currently are limited and erratic vaccine supplies. Strategies might include offering vaccines to teachers based strictly on their age and/or health status. However, teachers and in-class education are so critical to the educational process and the national economy that an open offer to all teachers makes more sense.

While some states have already prioritized teachers for vaccines, the AAP must continue to speak loudly that in-class education is critical and urge all states to do what is necessary to make teachers feel safe to return to the classroom.

Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at pdnews@mdedge.com.

Despite their similar functions, each current and emerging therapy for treating hemophilia has a unique safety profile, and each needs to be weighed apart from agents both within and outside its pharmacologic class, a hemophilia specialist said.

“My view is that each new molecule coming to the hemophilia space, including variant factor molecules, needs to be scrutinized separately, without class assumptions or extrapolations, and it’s clear that thrombosis risk has become a priority safety consideration,” said Dan Hart, MBChB, MRCP, FRCPath, PhD, from Barts and the London School of Medicine and Dentistry.

He reviewed the comparative safety of standard and novel therapies for hemophilia at the annual congress of the European Association for Haemophilia and Allied Disorders.
 

Factor inhibitors

Inhibitors occur in both hemophilia A and hemophilia B, and are primarily seen in patients with childhood exposure to factor concentrates. Inhibitors, which include anti–factor VIII and factor IX alloantibodies, are more common among patients with severe hemophilia and those with more disruptive factor VIII and factor IX mutations.

“There can be transient vs. persistent inhibitors, and arguably the more you look, the more you find, but clinically we never miss high-titer inhibitors that have a big impact on individuals and the subsequent decisions about management,” he said.
 

Hamster vs. human

It’s currently unclear whether there is an immunologic advantage for previously untreated patients to be started on factor VIII concentrates derived from recombinant human cells lines, or from products derived from Chinese hamster ovary (CHO) or baby hamster kidney (BHK) cell lines, Dr. Hart said.

“We need to ensure that we’re not selective about comparator choice for new products in the absence of head-to-head studies,” he said.
 

Route of administration matters

Inhibitors appear to be a more common occurrence among patients who received factor concentrates subcutaneously, compared with intravenously, Dr. Hart noted, pointing to a 2011 study indicating a background annual risk of 5 cases of inhibitor development per 1,000 treatment years in previously treated patients who received intravenous therapy (Blood. 2011 Jun 9;117[23]:6367-70).

In contrast, in a phase 1 trial of subcutaneous turoctocog alfa pegol, 5 out of 26 patients had detectable N8-GP–binding antibodies after 42-91 exposure days. Of these patients, one developed an inhibitor to factor VIII, and anti–N8-GP antibody appearance was associated with a decline in factor VIII plasma activity in four of the five patients. In addition, five patients reported a total of nine bleeding episodes requiring treatment during prophylaxis. As a result of this trial, further clinical development of the subcutaneous version was suspended. (J Thromb Haemost. 2020 Feb;18[2]:341-51).

Other subcutaneously administered factors are currently in development, Dr. Hart noted.
 

Nonfactor inhibitors?

“The nonfactor agents do have the risk of generating antibodies: Monoclonal antibodies outside the hemophilia setting provoke antidrug antibodies,” he said.

Although there is no consensus regarding which assay can best monitor antidrug antibodies (ADA), enzyme-linked immunosorbent assay (ELISA) can detect neutralizing antibodies and other antibodies.

In the hemophilia setting, surrogate markers for loss of drug efficacy include longer activated partial thromboplastin time (ATTP) or a drop in serum drug levels. Worsening bleeding phenotype can also be a marker for loss of efficacy, albeit an imperfect one.

Emicizumab (Hemlibara), the first nonfactor monoclonal agent to make it to market, has the largest dataset available, and evidence suggests a rate of neutralizing antibodies with this agent of less than 1% in the HAVEN clinical trial series, but 5.2% in the single-arm STASEY trial.

“We shouldn’t assume that other biophenotypics will have a similar ADA rate, and this needs to be evaluated for each molecule, as it will need to be for other monoclonals” such as anti–tissue factor pathway (TFPI) antibodies, Dr. Hart emphasized.
 

Pegylation

Pegylated compounds include polyethylene glycol, an inert polymer, covalently bound to the therapeutic protein to extend its half-life, and theoretically, reduce immunogenicity.

Many patients may already have exposure to pegylated products in the form of peginterferon to treat hepatitis C, consumer products such as toothpaste, cough medicine, and cosmetics, and, more recently, in vaccines against COVID-19.

Safety considerations with pegylated agents in hemophilia include concerns about accumulation of polyethylene glycol (PEG), although “some of the preclinical models looking at excretion of PEG are difficult to interpret in my view, and people debate about whether studies are long enough, but it’s undoubtedly the case that toxicology dosing is order of magnitude higher than the routine dosing in hemophilia,” he said.

After more than 5 years of experience with pegylated products there is no clinical evidence of concern, although “it’s not clear, actually, what we’re looking for, whether it’s a clinical parameter, or imaging or histological parameter.”

Patients may also not have lifelong exposure to pegylated products, as it is unlikely that they will stay on the same product for decades, Dr. Hart said.
 

Thrombosis

As of June 30, 2020, more than 7,200 persons with hemophilia have received emicizumab, and there have been 23 reported thrombotic events, 19 of which occurred in the postmarketing period. Of the reported cases, six patients had a myocardial infarction, and all of these patients had at least one cardiovascular risk factor.

The antithrombin agent fitusiran was associated with one fatal thrombotic event in a phase 2, open-label extension trial, leading to a pause and resumption with mitigation protocols, but that trial has since been paused again because of additional, nonfatal thrombotic events.

Nonfatal thrombotic events have also occurred in clinical trials for the investigational anti-TFPI monoclonal antibodies BAY 1093884 and concizumab, but none have thus far been reported in phase 3 trial of marstacimab.

“We need renewed efforts for prospective reporting and independent review of all adverse events of all agents, old and new: This will need some guidance nationally and internationally, and I think the relevant trial [serious adverse events] need to be reported in peer review literature, and clinicaltrials.gov updated in a timely manner, regardless of whether that strategy was successful or unsuccessful,” Dr. Hart said.
 

Risk with longer-acting agents?

In the question and answer following his presentation, Christoph Königs, MD, PhD, from University Hospital Frankfurt, asked whether there was potential for increased thrombosis risk with second-generation extended half-life (EHL) molecules in clinical trials.

“As we edge towards normalization of hemostasis, clearly the other non–hemophilia dependent issues of thrombosis risk come into play,” Dr. Hart acknowledged. “I think it will be an inevitability that there will be events, and we need to understand what the denominators are – hence my pitch for there being a renewed effort to try and collate sufficient data that we can really define events happening with people treated with standard half-life [products] through into the novel agents,” he said.

Dr. Hart disclosed grant/research support and speaker bureau activities for Bayer, Octapharma, Takeda, and others. Dr. Königs has reported no relevant disclosures.

Despite their similar functions, each current and emerging therapy for treating hemophilia has a unique safety profile, and each needs to be weighed apart from agents both within and outside its pharmacologic class, a hemophilia specialist said.

“My view is that each new molecule coming to the hemophilia space, including variant factor molecules, needs to be scrutinized separately, without class assumptions or extrapolations, and it’s clear that thrombosis risk has become a priority safety consideration,” said Dan Hart, MBChB, MRCP, FRCPath, PhD, from Barts and the London School of Medicine and Dentistry.

He reviewed the comparative safety of standard and novel therapies for hemophilia at the annual congress of the European Association for Haemophilia and Allied Disorders.
 

Factor inhibitors

Inhibitors occur in both hemophilia A and hemophilia B, and are primarily seen in patients with childhood exposure to factor concentrates. Inhibitors, which include anti–factor VIII and factor IX alloantibodies, are more common among patients with severe hemophilia and those with more disruptive factor VIII and factor IX mutations.

“There can be transient vs. persistent inhibitors, and arguably the more you look, the more you find, but clinically we never miss high-titer inhibitors that have a big impact on individuals and the subsequent decisions about management,” he said.
 

Hamster vs. human

It’s currently unclear whether there is an immunologic advantage for previously untreated patients to be started on factor VIII concentrates derived from recombinant human cells lines, or from products derived from Chinese hamster ovary (CHO) or baby hamster kidney (BHK) cell lines, Dr. Hart said.

“We need to ensure that we’re not selective about comparator choice for new products in the absence of head-to-head studies,” he said.
 

Route of administration matters

Inhibitors appear to be a more common occurrence among patients who received factor concentrates subcutaneously, compared with intravenously, Dr. Hart noted, pointing to a 2011 study indicating a background annual risk of 5 cases of inhibitor development per 1,000 treatment years in previously treated patients who received intravenous therapy (Blood. 2011 Jun 9;117[23]:6367-70).

In contrast, in a phase 1 trial of subcutaneous turoctocog alfa pegol, 5 out of 26 patients had detectable N8-GP–binding antibodies after 42-91 exposure days. Of these patients, one developed an inhibitor to factor VIII, and anti–N8-GP antibody appearance was associated with a decline in factor VIII plasma activity in four of the five patients. In addition, five patients reported a total of nine bleeding episodes requiring treatment during prophylaxis. As a result of this trial, further clinical development of the subcutaneous version was suspended. (J Thromb Haemost. 2020 Feb;18[2]:341-51).

Other subcutaneously administered factors are currently in development, Dr. Hart noted.
 

Nonfactor inhibitors?

“The nonfactor agents do have the risk of generating antibodies: Monoclonal antibodies outside the hemophilia setting provoke antidrug antibodies,” he said.

Although there is no consensus regarding which assay can best monitor antidrug antibodies (ADA), enzyme-linked immunosorbent assay (ELISA) can detect neutralizing antibodies and other antibodies.

In the hemophilia setting, surrogate markers for loss of drug efficacy include longer activated partial thromboplastin time (ATTP) or a drop in serum drug levels. Worsening bleeding phenotype can also be a marker for loss of efficacy, albeit an imperfect one.

Emicizumab (Hemlibara), the first nonfactor monoclonal agent to make it to market, has the largest dataset available, and evidence suggests a rate of neutralizing antibodies with this agent of less than 1% in the HAVEN clinical trial series, but 5.2% in the single-arm STASEY trial.

“We shouldn’t assume that other biophenotypics will have a similar ADA rate, and this needs to be evaluated for each molecule, as it will need to be for other monoclonals” such as anti–tissue factor pathway (TFPI) antibodies, Dr. Hart emphasized.
 

Pegylation

Pegylated compounds include polyethylene glycol, an inert polymer, covalently bound to the therapeutic protein to extend its half-life, and theoretically, reduce immunogenicity.

Many patients may already have exposure to pegylated products in the form of peginterferon to treat hepatitis C, consumer products such as toothpaste, cough medicine, and cosmetics, and, more recently, in vaccines against COVID-19.

Safety considerations with pegylated agents in hemophilia include concerns about accumulation of polyethylene glycol (PEG), although “some of the preclinical models looking at excretion of PEG are difficult to interpret in my view, and people debate about whether studies are long enough, but it’s undoubtedly the case that toxicology dosing is order of magnitude higher than the routine dosing in hemophilia,” he said.

After more than 5 years of experience with pegylated products there is no clinical evidence of concern, although “it’s not clear, actually, what we’re looking for, whether it’s a clinical parameter, or imaging or histological parameter.”

Patients may also not have lifelong exposure to pegylated products, as it is unlikely that they will stay on the same product for decades, Dr. Hart said.
 

Thrombosis

As of June 30, 2020, more than 7,200 persons with hemophilia have received emicizumab, and there have been 23 reported thrombotic events, 19 of which occurred in the postmarketing period. Of the reported cases, six patients had a myocardial infarction, and all of these patients had at least one cardiovascular risk factor.

The antithrombin agent fitusiran was associated with one fatal thrombotic event in a phase 2, open-label extension trial, leading to a pause and resumption with mitigation protocols, but that trial has since been paused again because of additional, nonfatal thrombotic events.

Nonfatal thrombotic events have also occurred in clinical trials for the investigational anti-TFPI monoclonal antibodies BAY 1093884 and concizumab, but none have thus far been reported in phase 3 trial of marstacimab.

“We need renewed efforts for prospective reporting and independent review of all adverse events of all agents, old and new: This will need some guidance nationally and internationally, and I think the relevant trial [serious adverse events] need to be reported in peer review literature, and clinicaltrials.gov updated in a timely manner, regardless of whether that strategy was successful or unsuccessful,” Dr. Hart said.
 

Risk with longer-acting agents?

In the question and answer following his presentation, Christoph Königs, MD, PhD, from University Hospital Frankfurt, asked whether there was potential for increased thrombosis risk with second-generation extended half-life (EHL) molecules in clinical trials.

“As we edge towards normalization of hemostasis, clearly the other non–hemophilia dependent issues of thrombosis risk come into play,” Dr. Hart acknowledged. “I think it will be an inevitability that there will be events, and we need to understand what the denominators are – hence my pitch for there being a renewed effort to try and collate sufficient data that we can really define events happening with people treated with standard half-life [products] through into the novel agents,” he said.

Dr. Hart disclosed grant/research support and speaker bureau activities for Bayer, Octapharma, Takeda, and others. Dr. Königs has reported no relevant disclosures.

Despite their similar functions, each current and emerging therapy for treating hemophilia has a unique safety profile, and each needs to be weighed apart from agents both within and outside its pharmacologic class, a hemophilia specialist said.

“My view is that each new molecule coming to the hemophilia space, including variant factor molecules, needs to be scrutinized separately, without class assumptions or extrapolations, and it’s clear that thrombosis risk has become a priority safety consideration,” said Dan Hart, MBChB, MRCP, FRCPath, PhD, from Barts and the London School of Medicine and Dentistry.

He reviewed the comparative safety of standard and novel therapies for hemophilia at the annual congress of the European Association for Haemophilia and Allied Disorders.
 

Factor inhibitors

Inhibitors occur in both hemophilia A and hemophilia B, and are primarily seen in patients with childhood exposure to factor concentrates. Inhibitors, which include anti–factor VIII and factor IX alloantibodies, are more common among patients with severe hemophilia and those with more disruptive factor VIII and factor IX mutations.

“There can be transient vs. persistent inhibitors, and arguably the more you look, the more you find, but clinically we never miss high-titer inhibitors that have a big impact on individuals and the subsequent decisions about management,” he said.
 

Hamster vs. human

It’s currently unclear whether there is an immunologic advantage for previously untreated patients to be started on factor VIII concentrates derived from recombinant human cells lines, or from products derived from Chinese hamster ovary (CHO) or baby hamster kidney (BHK) cell lines, Dr. Hart said.

“We need to ensure that we’re not selective about comparator choice for new products in the absence of head-to-head studies,” he said.
 

Route of administration matters

Inhibitors appear to be a more common occurrence among patients who received factor concentrates subcutaneously, compared with intravenously, Dr. Hart noted, pointing to a 2011 study indicating a background annual risk of 5 cases of inhibitor development per 1,000 treatment years in previously treated patients who received intravenous therapy (Blood. 2011 Jun 9;117[23]:6367-70).

In contrast, in a phase 1 trial of subcutaneous turoctocog alfa pegol, 5 out of 26 patients had detectable N8-GP–binding antibodies after 42-91 exposure days. Of these patients, one developed an inhibitor to factor VIII, and anti–N8-GP antibody appearance was associated with a decline in factor VIII plasma activity in four of the five patients. In addition, five patients reported a total of nine bleeding episodes requiring treatment during prophylaxis. As a result of this trial, further clinical development of the subcutaneous version was suspended. (J Thromb Haemost. 2020 Feb;18[2]:341-51).

Other subcutaneously administered factors are currently in development, Dr. Hart noted.
 

Nonfactor inhibitors?

“The nonfactor agents do have the risk of generating antibodies: Monoclonal antibodies outside the hemophilia setting provoke antidrug antibodies,” he said.

Although there is no consensus regarding which assay can best monitor antidrug antibodies (ADA), enzyme-linked immunosorbent assay (ELISA) can detect neutralizing antibodies and other antibodies.

In the hemophilia setting, surrogate markers for loss of drug efficacy include longer activated partial thromboplastin time (ATTP) or a drop in serum drug levels. Worsening bleeding phenotype can also be a marker for loss of efficacy, albeit an imperfect one.

Emicizumab (Hemlibara), the first nonfactor monoclonal agent to make it to market, has the largest dataset available, and evidence suggests a rate of neutralizing antibodies with this agent of less than 1% in the HAVEN clinical trial series, but 5.2% in the single-arm STASEY trial.

“We shouldn’t assume that other biophenotypics will have a similar ADA rate, and this needs to be evaluated for each molecule, as it will need to be for other monoclonals” such as anti–tissue factor pathway (TFPI) antibodies, Dr. Hart emphasized.
 

Pegylation

Pegylated compounds include polyethylene glycol, an inert polymer, covalently bound to the therapeutic protein to extend its half-life, and theoretically, reduce immunogenicity.

Many patients may already have exposure to pegylated products in the form of peginterferon to treat hepatitis C, consumer products such as toothpaste, cough medicine, and cosmetics, and, more recently, in vaccines against COVID-19.

Safety considerations with pegylated agents in hemophilia include concerns about accumulation of polyethylene glycol (PEG), although “some of the preclinical models looking at excretion of PEG are difficult to interpret in my view, and people debate about whether studies are long enough, but it’s undoubtedly the case that toxicology dosing is order of magnitude higher than the routine dosing in hemophilia,” he said.

After more than 5 years of experience with pegylated products there is no clinical evidence of concern, although “it’s not clear, actually, what we’re looking for, whether it’s a clinical parameter, or imaging or histological parameter.”

Patients may also not have lifelong exposure to pegylated products, as it is unlikely that they will stay on the same product for decades, Dr. Hart said.
 

Thrombosis

As of June 30, 2020, more than 7,200 persons with hemophilia have received emicizumab, and there have been 23 reported thrombotic events, 19 of which occurred in the postmarketing period. Of the reported cases, six patients had a myocardial infarction, and all of these patients had at least one cardiovascular risk factor.

The antithrombin agent fitusiran was associated with one fatal thrombotic event in a phase 2, open-label extension trial, leading to a pause and resumption with mitigation protocols, but that trial has since been paused again because of additional, nonfatal thrombotic events.

Nonfatal thrombotic events have also occurred in clinical trials for the investigational anti-TFPI monoclonal antibodies BAY 1093884 and concizumab, but none have thus far been reported in phase 3 trial of marstacimab.

“We need renewed efforts for prospective reporting and independent review of all adverse events of all agents, old and new: This will need some guidance nationally and internationally, and I think the relevant trial [serious adverse events] need to be reported in peer review literature, and clinicaltrials.gov updated in a timely manner, regardless of whether that strategy was successful or unsuccessful,” Dr. Hart said.
 

Risk with longer-acting agents?

In the question and answer following his presentation, Christoph Königs, MD, PhD, from University Hospital Frankfurt, asked whether there was potential for increased thrombosis risk with second-generation extended half-life (EHL) molecules in clinical trials.

“As we edge towards normalization of hemostasis, clearly the other non–hemophilia dependent issues of thrombosis risk come into play,” Dr. Hart acknowledged. “I think it will be an inevitability that there will be events, and we need to understand what the denominators are – hence my pitch for there being a renewed effort to try and collate sufficient data that we can really define events happening with people treated with standard half-life [products] through into the novel agents,” he said.

Dr. Hart disclosed grant/research support and speaker bureau activities for Bayer, Octapharma, Takeda, and others. Dr. Königs has reported no relevant disclosures.

Exposure to Group A streptococcus (GAS) does not appear to worsen symptoms of Tourette syndrome and other chronic tic disorders (CTDs) in children and adolescents, new research suggests.

Investigators studied over 700 children and teenagers with CTDs, one-third of whom also had attention deficit hyperactivity disorder and one-third who had obsessive-compulsive disorder (OCD).

The youngsters were followed for an average of 16 months and evaluated at 4-month intervals to see if they were infected with GAS. Tic severity was monitored through telephone interviews, in-person visits, and parental reports.

A little less than half the children experienced worsening of tics during the study period, but the researchers found no association between these exacerbations and GAS exposure.

There was also no link between GAS and worsening OCD. However, researchers did find an association between GAS exposure and an increase in hyperactivity and impulsivity in patients with ADHD.

“This study does not support GAS exposures as contributing factors for tic exacerbations in children with CTD,” the authors note.

“Specific work-up or active management of GAS infections is unlikely to help modifying the course of tics in CTD and is therefore not recommended,” they conclude.

The study was published online in Neurology.
 

‘Intense debate’

The association between GAS and CTD stems from the description of Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infection (PANDAS) – a condition that is now incorporated in the pediatric acute neuropsychiatric syndromes (PANS), the authors note. Tics constitute an “accompanying feature” of this condition.

However, neither population-based nor longitudinal clinical studies “could definitely establish if tic exacerbations in CTD are associated with GAS infections,” they note.  

“The link between streptococcus and tics in children is still a matter of intense debate,” said study author Davide Martino, MD, PhD, director of the Movement Disorders Program at the University of Calgary (Alta.), in a press release.

“We wanted to look at that question, as well as a possible link between strep and behavioral symptoms like obsessive-compulsive disorder and attention deficit hyperactivity disorder,” he said.

The researchers followed 715 children with CTD (mean age 10.7 years, 76.8% male) who were drawn from 16 specialist clinics in nine countries. Almost all (90.8%) had a diagnosis of Tourette syndrome (TS); 31.7% had OCD, and 36.1% had ADHD.

Participants received a throat swab at baseline, and of these, 8.4% tested positive for GAS.

Participants were evaluated over a 16- to 18-month period, consisting of:

• Face-to-face interviews and collection of throat swabs and serum at 4-month intervals.
• Telephone interviews at 4-month intervals, which took place at 2 months between study visit.
• Weekly diaries: Parents were asked to indicate any worsening of tics and focus on detecting the earliest possible tic exacerbation.

Beyond the regularly scheduled visits, parents were instructed to report, by phone or email, any noticeable increase in tic severity and then attend an in-person visit.

Tic exacerbations were defined as an increase of greater than or equal to 6 points on the Yale Global Tic Severity Scale-Total Tic Severity Score (YGTSS-TTS), compared with the previous assessment.

OCD and ADHD symptoms were assessed according to the Yale-Brown Obsessive-Compulsive Scale and the parent-reported Swanson, Nolan, and Pelham-IV (SNAP-IV) questionnaire.

The researchers divided GAS exposures into four categories: new definite exposure; new possible exposure; ongoing definite exposure; and ongoing possible exposure.
 

Unlikely trigger

During the follow-up period, 43.1% (n = 308) of participants experienced tic exacerbations. Of these, 218 participants experienced one exacerbation, while 90 participants experienced two, three, or four exacerbations.

The researchers did not find a significant association between GAS exposure status and tic exacerbation.

Participants who did develop a GAS-associated exacerbation (n = 49) were younger at study exit (9.63 vs. 11.4 years, P < .0001) and were more likely to be male (46/49 vs. 210/259, Fisher’s = .035), compared with participants who developed a non-GAS-associated tic exacerbation (n = 259).

Additional analyses were adjusted for sex, age at onset, exposure to psychotropic medications, exposures to antibiotics, geographical regions, and number of visits in the time interval of interest. These analyses continued to yield no significant association between new or ongoing concurrent GAS exposure episodes and tic exacerbation events.

Of the children in the study, 103 had a positive throat swab, indicating a new definite GAS exposure, whereas 46 had a positive throat swab indicating an ongoing definite exposure (n = 149 visits). Of these visits, only 20 corresponded to tic exacerbations.

There was also no association between GAS exposure and OCD symptom severity. However, it was associated with longitudinal changes (between 17% and 21%, depending on GAS exposure definition) in the severity of hyperactivity-impulsivity symptoms in children with ADHD.

“It is known that immune activation may concur with tic severity in youth with CTDs and that psychosocial stress levels may predict short-term future tic severity in these patients,” the authors write.

“Our findings suggest that GAS is unlikely to be the main trigger for immune activation in these patients,” they add.
 

Brick or cornerstone?

Commenting on the study for this news organization, Margo Thienemann, MD, clinical professor of psychiatry, Stanford (Calif.) University, said that in the clinic population they treat, GAS, other pathogens, and other stresses can “each be associated with PANS symptom exacerbations.”

However, these “would not be likely to cause PANS symptoms exacerbations in the vast majority of individuals, only individuals with genetic backgrounds and immunologic dysfunctions creating susceptibility,” said Dr. Thienemann, who also directs the Pediatric Acute-Onset Neuropsychiatric Syndrome (PANS) Clinic at Stanford Children’s Health. She was not involved with the study.

In an accompanying editorial, Andrea Cavanna, MD, PhD, honorary reader in neuropsychiatry, Birmingham (England) Medical School and Keith Coffman, MD, director, Tourette Syndrome Center of Excellence, Children’s Mercy Hospital, Kansas City, Mo., suggest that perhaps the “interaction of psychosocial stress and GAS infections contributes more to tic exacerbation than psychosocial stress alone.”

“Time will tell whether this study stands as another brick – a cornerstone? – in the wall that separates streptococcus from tics,” they write.

The study was supported by the European Union’s Seventh Framework Program. Dr. Martino has received honoraria for lecturing from the Movement Disorders Society, Tourette Syndrome Association of America, and Dystonia Medical Research Foundation Canada; research funding support from Dystonia Medical Research Foundation Canada, the University of Calgary (Alta.), the Michael P. Smith Family, the Owerko Foundation, Ipsen Corporate, the Parkinson Association of Alberta, and the Canadian Institutes for Health Research; and royalties from Springer-Verlag. The other authors’ disclosures are listed in the original article. Dr. Cavanna, Dr. Coffman, and Dr. Thienemann have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Exposure to Group A streptococcus (GAS) does not appear to worsen symptoms of Tourette syndrome and other chronic tic disorders (CTDs) in children and adolescents, new research suggests.

Investigators studied over 700 children and teenagers with CTDs, one-third of whom also had attention deficit hyperactivity disorder and one-third who had obsessive-compulsive disorder (OCD).

The youngsters were followed for an average of 16 months and evaluated at 4-month intervals to see if they were infected with GAS. Tic severity was monitored through telephone interviews, in-person visits, and parental reports.

A little less than half the children experienced worsening of tics during the study period, but the researchers found no association between these exacerbations and GAS exposure.

There was also no link between GAS and worsening OCD. However, researchers did find an association between GAS exposure and an increase in hyperactivity and impulsivity in patients with ADHD.

“This study does not support GAS exposures as contributing factors for tic exacerbations in children with CTD,” the authors note.

“Specific work-up or active management of GAS infections is unlikely to help modifying the course of tics in CTD and is therefore not recommended,” they conclude.

The study was published online in Neurology.
 

‘Intense debate’

The association between GAS and CTD stems from the description of Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infection (PANDAS) – a condition that is now incorporated in the pediatric acute neuropsychiatric syndromes (PANS), the authors note. Tics constitute an “accompanying feature” of this condition.

However, neither population-based nor longitudinal clinical studies “could definitely establish if tic exacerbations in CTD are associated with GAS infections,” they note.  

“The link between streptococcus and tics in children is still a matter of intense debate,” said study author Davide Martino, MD, PhD, director of the Movement Disorders Program at the University of Calgary (Alta.), in a press release.

“We wanted to look at that question, as well as a possible link between strep and behavioral symptoms like obsessive-compulsive disorder and attention deficit hyperactivity disorder,” he said.

The researchers followed 715 children with CTD (mean age 10.7 years, 76.8% male) who were drawn from 16 specialist clinics in nine countries. Almost all (90.8%) had a diagnosis of Tourette syndrome (TS); 31.7% had OCD, and 36.1% had ADHD.

Participants received a throat swab at baseline, and of these, 8.4% tested positive for GAS.

Participants were evaluated over a 16- to 18-month period, consisting of:

• Face-to-face interviews and collection of throat swabs and serum at 4-month intervals.
• Telephone interviews at 4-month intervals, which took place at 2 months between study visit.
• Weekly diaries: Parents were asked to indicate any worsening of tics and focus on detecting the earliest possible tic exacerbation.

Beyond the regularly scheduled visits, parents were instructed to report, by phone or email, any noticeable increase in tic severity and then attend an in-person visit.

Tic exacerbations were defined as an increase of greater than or equal to 6 points on the Yale Global Tic Severity Scale-Total Tic Severity Score (YGTSS-TTS), compared with the previous assessment.

OCD and ADHD symptoms were assessed according to the Yale-Brown Obsessive-Compulsive Scale and the parent-reported Swanson, Nolan, and Pelham-IV (SNAP-IV) questionnaire.

The researchers divided GAS exposures into four categories: new definite exposure; new possible exposure; ongoing definite exposure; and ongoing possible exposure.
 

Unlikely trigger

During the follow-up period, 43.1% (n = 308) of participants experienced tic exacerbations. Of these, 218 participants experienced one exacerbation, while 90 participants experienced two, three, or four exacerbations.

The researchers did not find a significant association between GAS exposure status and tic exacerbation.

Participants who did develop a GAS-associated exacerbation (n = 49) were younger at study exit (9.63 vs. 11.4 years, P < .0001) and were more likely to be male (46/49 vs. 210/259, Fisher’s = .035), compared with participants who developed a non-GAS-associated tic exacerbation (n = 259).

Additional analyses were adjusted for sex, age at onset, exposure to psychotropic medications, exposures to antibiotics, geographical regions, and number of visits in the time interval of interest. These analyses continued to yield no significant association between new or ongoing concurrent GAS exposure episodes and tic exacerbation events.

Of the children in the study, 103 had a positive throat swab, indicating a new definite GAS exposure, whereas 46 had a positive throat swab indicating an ongoing definite exposure (n = 149 visits). Of these visits, only 20 corresponded to tic exacerbations.

There was also no association between GAS exposure and OCD symptom severity. However, it was associated with longitudinal changes (between 17% and 21%, depending on GAS exposure definition) in the severity of hyperactivity-impulsivity symptoms in children with ADHD.

“It is known that immune activation may concur with tic severity in youth with CTDs and that psychosocial stress levels may predict short-term future tic severity in these patients,” the authors write.

“Our findings suggest that GAS is unlikely to be the main trigger for immune activation in these patients,” they add.
 

Brick or cornerstone?

Commenting on the study for this news organization, Margo Thienemann, MD, clinical professor of psychiatry, Stanford (Calif.) University, said that in the clinic population they treat, GAS, other pathogens, and other stresses can “each be associated with PANS symptom exacerbations.”

However, these “would not be likely to cause PANS symptoms exacerbations in the vast majority of individuals, only individuals with genetic backgrounds and immunologic dysfunctions creating susceptibility,” said Dr. Thienemann, who also directs the Pediatric Acute-Onset Neuropsychiatric Syndrome (PANS) Clinic at Stanford Children’s Health. She was not involved with the study.

In an accompanying editorial, Andrea Cavanna, MD, PhD, honorary reader in neuropsychiatry, Birmingham (England) Medical School and Keith Coffman, MD, director, Tourette Syndrome Center of Excellence, Children’s Mercy Hospital, Kansas City, Mo., suggest that perhaps the “interaction of psychosocial stress and GAS infections contributes more to tic exacerbation than psychosocial stress alone.”

“Time will tell whether this study stands as another brick – a cornerstone? – in the wall that separates streptococcus from tics,” they write.

The study was supported by the European Union’s Seventh Framework Program. Dr. Martino has received honoraria for lecturing from the Movement Disorders Society, Tourette Syndrome Association of America, and Dystonia Medical Research Foundation Canada; research funding support from Dystonia Medical Research Foundation Canada, the University of Calgary (Alta.), the Michael P. Smith Family, the Owerko Foundation, Ipsen Corporate, the Parkinson Association of Alberta, and the Canadian Institutes for Health Research; and royalties from Springer-Verlag. The other authors’ disclosures are listed in the original article. Dr. Cavanna, Dr. Coffman, and Dr. Thienemann have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Exposure to Group A streptococcus (GAS) does not appear to worsen symptoms of Tourette syndrome and other chronic tic disorders (CTDs) in children and adolescents, new research suggests.

Investigators studied over 700 children and teenagers with CTDs, one-third of whom also had attention deficit hyperactivity disorder and one-third who had obsessive-compulsive disorder (OCD).

The youngsters were followed for an average of 16 months and evaluated at 4-month intervals to see if they were infected with GAS. Tic severity was monitored through telephone interviews, in-person visits, and parental reports.

A little less than half the children experienced worsening of tics during the study period, but the researchers found no association between these exacerbations and GAS exposure.

There was also no link between GAS and worsening OCD. However, researchers did find an association between GAS exposure and an increase in hyperactivity and impulsivity in patients with ADHD.

“This study does not support GAS exposures as contributing factors for tic exacerbations in children with CTD,” the authors note.

“Specific work-up or active management of GAS infections is unlikely to help modifying the course of tics in CTD and is therefore not recommended,” they conclude.

The study was published online in Neurology.
 

‘Intense debate’

The association between GAS and CTD stems from the description of Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infection (PANDAS) – a condition that is now incorporated in the pediatric acute neuropsychiatric syndromes (PANS), the authors note. Tics constitute an “accompanying feature” of this condition.

However, neither population-based nor longitudinal clinical studies “could definitely establish if tic exacerbations in CTD are associated with GAS infections,” they note.  

“The link between streptococcus and tics in children is still a matter of intense debate,” said study author Davide Martino, MD, PhD, director of the Movement Disorders Program at the University of Calgary (Alta.), in a press release.

“We wanted to look at that question, as well as a possible link between strep and behavioral symptoms like obsessive-compulsive disorder and attention deficit hyperactivity disorder,” he said.

The researchers followed 715 children with CTD (mean age 10.7 years, 76.8% male) who were drawn from 16 specialist clinics in nine countries. Almost all (90.8%) had a diagnosis of Tourette syndrome (TS); 31.7% had OCD, and 36.1% had ADHD.

Participants received a throat swab at baseline, and of these, 8.4% tested positive for GAS.

Participants were evaluated over a 16- to 18-month period, consisting of:

• Face-to-face interviews and collection of throat swabs and serum at 4-month intervals.
• Telephone interviews at 4-month intervals, which took place at 2 months between study visit.
• Weekly diaries: Parents were asked to indicate any worsening of tics and focus on detecting the earliest possible tic exacerbation.

Beyond the regularly scheduled visits, parents were instructed to report, by phone or email, any noticeable increase in tic severity and then attend an in-person visit.

Tic exacerbations were defined as an increase of greater than or equal to 6 points on the Yale Global Tic Severity Scale-Total Tic Severity Score (YGTSS-TTS), compared with the previous assessment.

OCD and ADHD symptoms were assessed according to the Yale-Brown Obsessive-Compulsive Scale and the parent-reported Swanson, Nolan, and Pelham-IV (SNAP-IV) questionnaire.

The researchers divided GAS exposures into four categories: new definite exposure; new possible exposure; ongoing definite exposure; and ongoing possible exposure.
 

Unlikely trigger

During the follow-up period, 43.1% (n = 308) of participants experienced tic exacerbations. Of these, 218 participants experienced one exacerbation, while 90 participants experienced two, three, or four exacerbations.

The researchers did not find a significant association between GAS exposure status and tic exacerbation.

Participants who did develop a GAS-associated exacerbation (n = 49) were younger at study exit (9.63 vs. 11.4 years, P < .0001) and were more likely to be male (46/49 vs. 210/259, Fisher’s = .035), compared with participants who developed a non-GAS-associated tic exacerbation (n = 259).

Additional analyses were adjusted for sex, age at onset, exposure to psychotropic medications, exposures to antibiotics, geographical regions, and number of visits in the time interval of interest. These analyses continued to yield no significant association between new or ongoing concurrent GAS exposure episodes and tic exacerbation events.

Of the children in the study, 103 had a positive throat swab, indicating a new definite GAS exposure, whereas 46 had a positive throat swab indicating an ongoing definite exposure (n = 149 visits). Of these visits, only 20 corresponded to tic exacerbations.

There was also no association between GAS exposure and OCD symptom severity. However, it was associated with longitudinal changes (between 17% and 21%, depending on GAS exposure definition) in the severity of hyperactivity-impulsivity symptoms in children with ADHD.

“It is known that immune activation may concur with tic severity in youth with CTDs and that psychosocial stress levels may predict short-term future tic severity in these patients,” the authors write.

“Our findings suggest that GAS is unlikely to be the main trigger for immune activation in these patients,” they add.
 

Brick or cornerstone?

Commenting on the study for this news organization, Margo Thienemann, MD, clinical professor of psychiatry, Stanford (Calif.) University, said that in the clinic population they treat, GAS, other pathogens, and other stresses can “each be associated with PANS symptom exacerbations.”

However, these “would not be likely to cause PANS symptoms exacerbations in the vast majority of individuals, only individuals with genetic backgrounds and immunologic dysfunctions creating susceptibility,” said Dr. Thienemann, who also directs the Pediatric Acute-Onset Neuropsychiatric Syndrome (PANS) Clinic at Stanford Children’s Health. She was not involved with the study.

In an accompanying editorial, Andrea Cavanna, MD, PhD, honorary reader in neuropsychiatry, Birmingham (England) Medical School and Keith Coffman, MD, director, Tourette Syndrome Center of Excellence, Children’s Mercy Hospital, Kansas City, Mo., suggest that perhaps the “interaction of psychosocial stress and GAS infections contributes more to tic exacerbation than psychosocial stress alone.”

“Time will tell whether this study stands as another brick – a cornerstone? – in the wall that separates streptococcus from tics,” they write.

The study was supported by the European Union’s Seventh Framework Program. Dr. Martino has received honoraria for lecturing from the Movement Disorders Society, Tourette Syndrome Association of America, and Dystonia Medical Research Foundation Canada; research funding support from Dystonia Medical Research Foundation Canada, the University of Calgary (Alta.), the Michael P. Smith Family, the Owerko Foundation, Ipsen Corporate, the Parkinson Association of Alberta, and the Canadian Institutes for Health Research; and royalties from Springer-Verlag. The other authors’ disclosures are listed in the original article. Dr. Cavanna, Dr. Coffman, and Dr. Thienemann have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Each February, the Centers for Disease Control and Prevention, along with multiple professional organizations, releases an updated Recommended Child and Adolescent Immunization Schedule.

Recent years have seen fewer changes in the vaccine schedule, mostly with adjustments based on products coming on or off the market, and sometimes with slight changes in recommendations. This year is no different, with mostly minor changes in store. As most practitioners know, having quick access to the tables that accompany the recommendations is always handy. Table 1 contains the typical, recommended immunization schedule. Table 2 contains the catch-up provisions, and Table 3 provides guidance on vaccines for special circumstances and for children with specific medical conditions.
 

2021 childhood and adolescent immunization schedule

One update is a recommendation that patients with egg allergies who had symptoms more extensive than hives should receive the influenza vaccine in a medical setting where severe allergic reactions or anaphylaxis can be recognized and treated, with the exclusion of two specific preparations, Flublok and Flucelvax.

In regard to the live attenuated influenza vaccine (LAIV), there are several points of reinforcement. First, the nomenclature has generally been changed to “LAIV4” throughout the document because only quadrivalent preparations are available. There are specific recommendations that patients should not receive LAIV4 if they recently took antiviral medication for influenza, with “lockout” periods lasting from 2 days to 17 days, depending on the antiviral preparation used. In addition, there is an emphasis on not using LAIV4 for children younger than 2 years.

Two updates to the meningococcal group B vaccine are worth reviewing. The first is that children aged 10 years or older with complement deficiency, complement inhibitor use, or asplenia should receive a meningitis B booster dose beginning 1 year after completion of the primary series, with boosters thereafter every 2 or 3 years as long as that patient remains at greater risk. Another recommendation for patients 10 years or older is that, even if they have received a primary series of meningitis B vaccines, they should receive a booster dose in the setting of an outbreak if it has been 1 year or more since completion of their primary series.

Recommendations have generally been relaxed for tetanus prophylaxis in older children, indicating that individuals requiring tetanus prophylaxis or their 10-year tetanus booster after receipt of at least one Tdap vaccine can receive either tetanus-diphtheria toxoid or Tdap.
 

COVID-19 vaccines

Although childhood vaccination against COVID-19 is still currently limited to adolescents involved in clinical trials, pediatricians surely are getting peppered with questions from parents about whether they should be vaccinated and what to make of the recent reports about allergic reactions. Fortunately, there are several resources for pediatricians. First, two reports point out that true anaphylactic reactions to COVID-19 vaccines appear quite rare. The reported data on Pfizer-developed mRNA vaccine demonstrated an anaphylaxis rate of approximately 2 cases per 1 million doses administered. Among the 21 recipients who experienced anaphylaxis (out of over 11 million total doses administered), fully one third had a history of anaphylaxis episodes. The report also reviews vaccine reactions that were reported but were not classified as anaphylaxis, pointing out that when reporting vaccine reactions, we should be very careful in the nomenclature we use.

Reporting on the Moderna mRNA vaccine showed anaphylaxis rates of about 2.5 per 1 million doses, with 50% of the recipients who experienced true anaphylaxis having a history of anaphylaxis. Most of those who experienced anaphylaxis (90% in the Moderna group and 86% in the Pfizer group) exhibited symptoms of anaphylaxis within 30 minutes of receiving the vaccine. The take-home point, and the current CDC recommendation, is that many individuals, even those with a history of anaphylaxis, can still receive COVID-19 vaccines. The rates of observed anaphylaxis after COVID vaccination are far below population rates of a history of allergy or severe allergic reactions. When coupled with an estimated mortality rate of 0.5%-1% for SARS-CoV-2 disease, that CDC recommends that we encourage people, even those with severe allergies, to get vaccinated.

One clear caveat is that individuals with a history of severe anaphylaxis, and even those concerned about allergies, should be observed for a longer period after vaccination (at least 30 minutes) than the 15 minutes recommended for the general population. In addition, individuals with a specific anaphylactic reaction or severe allergic reaction to any injectable vaccine should confer with an immunologist before considering vaccination.

Another useful resource is a column published by the American Medical Association that walks through some talking points for providers when discussing whether a patient should receive COVID-19 vaccination. Advice is offered on answering patient questions about which preparation to get, what side effects to watch for, and how to report an adverse reaction. Providers are reminded to urge patients to complete whichever series they begin (get that second dose!), and that they currently should not have to pay for a vaccine. FAQ resource pages are available for patients and health care providers.
 

More vaccine news: HPV and influenza

Meanwhile, published vaccine reports provide evidence from the field to demonstrate the benefits of vaccination. A study published in the New England Journal of Medicine reported on the effectiveness of human papillomavirus (HPV) vaccine in a Swedish cohort. The report evaluated females aged between 10 and 30 years beginning in 2006 and followed them through 2017, comparing rates of invasive cervical cancer among the group who received one or more HPV vaccine doses with the group who receive none. Even without adjustment, the raw rate of invasive cervical cancer in the vaccinated group was half of that in the unvaccinated group. After full adjustment, some populations experienced incident rate ratios that were greater than 80% reduced. The largest reduction, and therefore the biggest benefit, was among those who received the HPV vaccine before age 17.

A report from the United States looking at the 2018-2019 influenza season demonstrated a vaccine effectiveness rate against hospitalization of 41% and 51% against any ED visit related to influenza. The authors note that there was considerable drift in the influenza A type that appeared late in the influenza season, reducing the overall effectiveness, but that the vaccine was still largely effective.

William T. Basco Jr, MD, MS, is a professor of pediatrics at the Medical University of South Carolina, Charleston, and director of the division of general pediatrics. He is an active health services researcher and has published more than 60 manuscripts in the peer-reviewed literature.

A version of this article first appeared on Medscape.com.

Each February, the Centers for Disease Control and Prevention, along with multiple professional organizations, releases an updated Recommended Child and Adolescent Immunization Schedule.

Recent years have seen fewer changes in the vaccine schedule, mostly with adjustments based on products coming on or off the market, and sometimes with slight changes in recommendations. This year is no different, with mostly minor changes in store. As most practitioners know, having quick access to the tables that accompany the recommendations is always handy. Table 1 contains the typical, recommended immunization schedule. Table 2 contains the catch-up provisions, and Table 3 provides guidance on vaccines for special circumstances and for children with specific medical conditions.
 

2021 childhood and adolescent immunization schedule

One update is a recommendation that patients with egg allergies who had symptoms more extensive than hives should receive the influenza vaccine in a medical setting where severe allergic reactions or anaphylaxis can be recognized and treated, with the exclusion of two specific preparations, Flublok and Flucelvax.

In regard to the live attenuated influenza vaccine (LAIV), there are several points of reinforcement. First, the nomenclature has generally been changed to “LAIV4” throughout the document because only quadrivalent preparations are available. There are specific recommendations that patients should not receive LAIV4 if they recently took antiviral medication for influenza, with “lockout” periods lasting from 2 days to 17 days, depending on the antiviral preparation used. In addition, there is an emphasis on not using LAIV4 for children younger than 2 years.

Two updates to the meningococcal group B vaccine are worth reviewing. The first is that children aged 10 years or older with complement deficiency, complement inhibitor use, or asplenia should receive a meningitis B booster dose beginning 1 year after completion of the primary series, with boosters thereafter every 2 or 3 years as long as that patient remains at greater risk. Another recommendation for patients 10 years or older is that, even if they have received a primary series of meningitis B vaccines, they should receive a booster dose in the setting of an outbreak if it has been 1 year or more since completion of their primary series.

Recommendations have generally been relaxed for tetanus prophylaxis in older children, indicating that individuals requiring tetanus prophylaxis or their 10-year tetanus booster after receipt of at least one Tdap vaccine can receive either tetanus-diphtheria toxoid or Tdap.
 

COVID-19 vaccines

Although childhood vaccination against COVID-19 is still currently limited to adolescents involved in clinical trials, pediatricians surely are getting peppered with questions from parents about whether they should be vaccinated and what to make of the recent reports about allergic reactions. Fortunately, there are several resources for pediatricians. First, two reports point out that true anaphylactic reactions to COVID-19 vaccines appear quite rare. The reported data on Pfizer-developed mRNA vaccine demonstrated an anaphylaxis rate of approximately 2 cases per 1 million doses administered. Among the 21 recipients who experienced anaphylaxis (out of over 11 million total doses administered), fully one third had a history of anaphylaxis episodes. The report also reviews vaccine reactions that were reported but were not classified as anaphylaxis, pointing out that when reporting vaccine reactions, we should be very careful in the nomenclature we use.

Reporting on the Moderna mRNA vaccine showed anaphylaxis rates of about 2.5 per 1 million doses, with 50% of the recipients who experienced true anaphylaxis having a history of anaphylaxis. Most of those who experienced anaphylaxis (90% in the Moderna group and 86% in the Pfizer group) exhibited symptoms of anaphylaxis within 30 minutes of receiving the vaccine. The take-home point, and the current CDC recommendation, is that many individuals, even those with a history of anaphylaxis, can still receive COVID-19 vaccines. The rates of observed anaphylaxis after COVID vaccination are far below population rates of a history of allergy or severe allergic reactions. When coupled with an estimated mortality rate of 0.5%-1% for SARS-CoV-2 disease, that CDC recommends that we encourage people, even those with severe allergies, to get vaccinated.

One clear caveat is that individuals with a history of severe anaphylaxis, and even those concerned about allergies, should be observed for a longer period after vaccination (at least 30 minutes) than the 15 minutes recommended for the general population. In addition, individuals with a specific anaphylactic reaction or severe allergic reaction to any injectable vaccine should confer with an immunologist before considering vaccination.

Another useful resource is a column published by the American Medical Association that walks through some talking points for providers when discussing whether a patient should receive COVID-19 vaccination. Advice is offered on answering patient questions about which preparation to get, what side effects to watch for, and how to report an adverse reaction. Providers are reminded to urge patients to complete whichever series they begin (get that second dose!), and that they currently should not have to pay for a vaccine. FAQ resource pages are available for patients and health care providers.
 

More vaccine news: HPV and influenza

Meanwhile, published vaccine reports provide evidence from the field to demonstrate the benefits of vaccination. A study published in the New England Journal of Medicine reported on the effectiveness of human papillomavirus (HPV) vaccine in a Swedish cohort. The report evaluated females aged between 10 and 30 years beginning in 2006 and followed them through 2017, comparing rates of invasive cervical cancer among the group who received one or more HPV vaccine doses with the group who receive none. Even without adjustment, the raw rate of invasive cervical cancer in the vaccinated group was half of that in the unvaccinated group. After full adjustment, some populations experienced incident rate ratios that were greater than 80% reduced. The largest reduction, and therefore the biggest benefit, was among those who received the HPV vaccine before age 17.

A report from the United States looking at the 2018-2019 influenza season demonstrated a vaccine effectiveness rate against hospitalization of 41% and 51% against any ED visit related to influenza. The authors note that there was considerable drift in the influenza A type that appeared late in the influenza season, reducing the overall effectiveness, but that the vaccine was still largely effective.

William T. Basco Jr, MD, MS, is a professor of pediatrics at the Medical University of South Carolina, Charleston, and director of the division of general pediatrics. He is an active health services researcher and has published more than 60 manuscripts in the peer-reviewed literature.

A version of this article first appeared on Medscape.com.

Each February, the Centers for Disease Control and Prevention, along with multiple professional organizations, releases an updated Recommended Child and Adolescent Immunization Schedule.

Recent years have seen fewer changes in the vaccine schedule, mostly with adjustments based on products coming on or off the market, and sometimes with slight changes in recommendations. This year is no different, with mostly minor changes in store. As most practitioners know, having quick access to the tables that accompany the recommendations is always handy. Table 1 contains the typical, recommended immunization schedule. Table 2 contains the catch-up provisions, and Table 3 provides guidance on vaccines for special circumstances and for children with specific medical conditions.
 

2021 childhood and adolescent immunization schedule

One update is a recommendation that patients with egg allergies who had symptoms more extensive than hives should receive the influenza vaccine in a medical setting where severe allergic reactions or anaphylaxis can be recognized and treated, with the exclusion of two specific preparations, Flublok and Flucelvax.

In regard to the live attenuated influenza vaccine (LAIV), there are several points of reinforcement. First, the nomenclature has generally been changed to “LAIV4” throughout the document because only quadrivalent preparations are available. There are specific recommendations that patients should not receive LAIV4 if they recently took antiviral medication for influenza, with “lockout” periods lasting from 2 days to 17 days, depending on the antiviral preparation used. In addition, there is an emphasis on not using LAIV4 for children younger than 2 years.

Two updates to the meningococcal group B vaccine are worth reviewing. The first is that children aged 10 years or older with complement deficiency, complement inhibitor use, or asplenia should receive a meningitis B booster dose beginning 1 year after completion of the primary series, with boosters thereafter every 2 or 3 years as long as that patient remains at greater risk. Another recommendation for patients 10 years or older is that, even if they have received a primary series of meningitis B vaccines, they should receive a booster dose in the setting of an outbreak if it has been 1 year or more since completion of their primary series.

Recommendations have generally been relaxed for tetanus prophylaxis in older children, indicating that individuals requiring tetanus prophylaxis or their 10-year tetanus booster after receipt of at least one Tdap vaccine can receive either tetanus-diphtheria toxoid or Tdap.
 

COVID-19 vaccines

Although childhood vaccination against COVID-19 is still currently limited to adolescents involved in clinical trials, pediatricians surely are getting peppered with questions from parents about whether they should be vaccinated and what to make of the recent reports about allergic reactions. Fortunately, there are several resources for pediatricians. First, two reports point out that true anaphylactic reactions to COVID-19 vaccines appear quite rare. The reported data on Pfizer-developed mRNA vaccine demonstrated an anaphylaxis rate of approximately 2 cases per 1 million doses administered. Among the 21 recipients who experienced anaphylaxis (out of over 11 million total doses administered), fully one third had a history of anaphylaxis episodes. The report also reviews vaccine reactions that were reported but were not classified as anaphylaxis, pointing out that when reporting vaccine reactions, we should be very careful in the nomenclature we use.

Reporting on the Moderna mRNA vaccine showed anaphylaxis rates of about 2.5 per 1 million doses, with 50% of the recipients who experienced true anaphylaxis having a history of anaphylaxis. Most of those who experienced anaphylaxis (90% in the Moderna group and 86% in the Pfizer group) exhibited symptoms of anaphylaxis within 30 minutes of receiving the vaccine. The take-home point, and the current CDC recommendation, is that many individuals, even those with a history of anaphylaxis, can still receive COVID-19 vaccines. The rates of observed anaphylaxis after COVID vaccination are far below population rates of a history of allergy or severe allergic reactions. When coupled with an estimated mortality rate of 0.5%-1% for SARS-CoV-2 disease, that CDC recommends that we encourage people, even those with severe allergies, to get vaccinated.

One clear caveat is that individuals with a history of severe anaphylaxis, and even those concerned about allergies, should be observed for a longer period after vaccination (at least 30 minutes) than the 15 minutes recommended for the general population. In addition, individuals with a specific anaphylactic reaction or severe allergic reaction to any injectable vaccine should confer with an immunologist before considering vaccination.

Another useful resource is a column published by the American Medical Association that walks through some talking points for providers when discussing whether a patient should receive COVID-19 vaccination. Advice is offered on answering patient questions about which preparation to get, what side effects to watch for, and how to report an adverse reaction. Providers are reminded to urge patients to complete whichever series they begin (get that second dose!), and that they currently should not have to pay for a vaccine. FAQ resource pages are available for patients and health care providers.
 

More vaccine news: HPV and influenza

Meanwhile, published vaccine reports provide evidence from the field to demonstrate the benefits of vaccination. A study published in the New England Journal of Medicine reported on the effectiveness of human papillomavirus (HPV) vaccine in a Swedish cohort. The report evaluated females aged between 10 and 30 years beginning in 2006 and followed them through 2017, comparing rates of invasive cervical cancer among the group who received one or more HPV vaccine doses with the group who receive none. Even without adjustment, the raw rate of invasive cervical cancer in the vaccinated group was half of that in the unvaccinated group. After full adjustment, some populations experienced incident rate ratios that were greater than 80% reduced. The largest reduction, and therefore the biggest benefit, was among those who received the HPV vaccine before age 17.

A report from the United States looking at the 2018-2019 influenza season demonstrated a vaccine effectiveness rate against hospitalization of 41% and 51% against any ED visit related to influenza. The authors note that there was considerable drift in the influenza A type that appeared late in the influenza season, reducing the overall effectiveness, but that the vaccine was still largely effective.

William T. Basco Jr, MD, MS, is a professor of pediatrics at the Medical University of South Carolina, Charleston, and director of the division of general pediatrics. He is an active health services researcher and has published more than 60 manuscripts in the peer-reviewed literature.

A version of this article first appeared on Medscape.com.