Infectious Diseases

Preliminary data from seven states suggests that breakthrough COVID-19 infections among vaccinated people may be on the rise because of the more contagious Delta variant.

Breakthrough cases accounted for about one in five newly diagnosed cases in six of the states, according to the New York Times. Hospitalizations and deaths among vaccinated people may be higher than previously thought as well.

“Remember when the early vaccine studies came out, it was like nobody gets hospitalized, nobody dies,” Robert Wachter, MD, chairman of the department of medicine at the University of California, San Francisco, said in an interview. “That clearly is not true.”

The New York Times analyzed data in seven states – California, Colorado, Massachusetts, Oregon, Utah, Vermont, and Virginia – that are tracking the most detailed information. The trends in these states may not reflect the numbers throughout the country, the newspaper reported.

Even still, the numbers back up the idea that vaccinated people may need booster shots this fall to support their earlier vaccine doses. Federal health officials are scheduled to approve the extra shots in coming weeks, potentially in September. The first people to receive booster shots will likely be health care workers and nursing home residents who took the first vaccines in December and January.

“If the chances of a breakthrough infection have gone up considerably, and I think the evidence is clear that they have, and the level of protection against severe illness is no longer as robust as it was, I think the case for boosters goes up pretty quickly,” Dr. Wachter said.

Previous analyses of breakthrough cases included data from June and earlier, the newspaper reported. But since July, COVID-19 cases have soared again because of the Delta variant, and the most recent numbers show an uptick among vaccinated people. In Los Angeles County, for instance, fully vaccinated people account for 20% of new COVID-19 cases, which is up from 11% in May, 5% in April, and 2% in March, according to a late July report from the Los Angeles County Department of Public Health.

What’s more, breakthrough infections in the seven states accounted for 12%-24% of COVID-19 hospitalizations in those states. About 8,000 breakthrough hospitalizations have been reported to the CDC. Still, the overall numbers remain low – in California, for instance, about 1,615 people have been hospitalized with breakthrough infections, which accounts for 0.007% of the state’s 22 million vaccinated people, the Times reported.

The breakthrough infections appear to be more severe among vaccinated people who are older or have weakened immune systems. About 74% of breakthrough cases are among adults 65 or older, the CDC reported.

The increase may shift how vaccinated people see their risks for infection and interact with loved ones. Public health officials have suggested that people follow some COVID-19 safety protocols again, such as wearing masks in public indoor spaces regardless of vaccination status.

As the Delta variant continues to circulate this fall, public health researchers will be researching more about breakthrough cases among vaccinated people, including whether they have prolonged symptoms and how easily they may pass the virus to others.

“I think some of us have been challenged by the numbers of clusters that we’ve seen,” Michael Osterholm, PhD, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, told this news organization.

“I think that really needs to be examined more,” he said.

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

Preliminary data from seven states suggests that breakthrough COVID-19 infections among vaccinated people may be on the rise because of the more contagious Delta variant.

Breakthrough cases accounted for about one in five newly diagnosed cases in six of the states, according to the New York Times. Hospitalizations and deaths among vaccinated people may be higher than previously thought as well.

“Remember when the early vaccine studies came out, it was like nobody gets hospitalized, nobody dies,” Robert Wachter, MD, chairman of the department of medicine at the University of California, San Francisco, said in an interview. “That clearly is not true.”

The New York Times analyzed data in seven states – California, Colorado, Massachusetts, Oregon, Utah, Vermont, and Virginia – that are tracking the most detailed information. The trends in these states may not reflect the numbers throughout the country, the newspaper reported.

Even still, the numbers back up the idea that vaccinated people may need booster shots this fall to support their earlier vaccine doses. Federal health officials are scheduled to approve the extra shots in coming weeks, potentially in September. The first people to receive booster shots will likely be health care workers and nursing home residents who took the first vaccines in December and January.

“If the chances of a breakthrough infection have gone up considerably, and I think the evidence is clear that they have, and the level of protection against severe illness is no longer as robust as it was, I think the case for boosters goes up pretty quickly,” Dr. Wachter said.

Previous analyses of breakthrough cases included data from June and earlier, the newspaper reported. But since July, COVID-19 cases have soared again because of the Delta variant, and the most recent numbers show an uptick among vaccinated people. In Los Angeles County, for instance, fully vaccinated people account for 20% of new COVID-19 cases, which is up from 11% in May, 5% in April, and 2% in March, according to a late July report from the Los Angeles County Department of Public Health.

What’s more, breakthrough infections in the seven states accounted for 12%-24% of COVID-19 hospitalizations in those states. About 8,000 breakthrough hospitalizations have been reported to the CDC. Still, the overall numbers remain low – in California, for instance, about 1,615 people have been hospitalized with breakthrough infections, which accounts for 0.007% of the state’s 22 million vaccinated people, the Times reported.

The breakthrough infections appear to be more severe among vaccinated people who are older or have weakened immune systems. About 74% of breakthrough cases are among adults 65 or older, the CDC reported.

The increase may shift how vaccinated people see their risks for infection and interact with loved ones. Public health officials have suggested that people follow some COVID-19 safety protocols again, such as wearing masks in public indoor spaces regardless of vaccination status.

As the Delta variant continues to circulate this fall, public health researchers will be researching more about breakthrough cases among vaccinated people, including whether they have prolonged symptoms and how easily they may pass the virus to others.

“I think some of us have been challenged by the numbers of clusters that we’ve seen,” Michael Osterholm, PhD, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, told this news organization.

“I think that really needs to be examined more,” he said.

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

Preliminary data from seven states suggests that breakthrough COVID-19 infections among vaccinated people may be on the rise because of the more contagious Delta variant.

Breakthrough cases accounted for about one in five newly diagnosed cases in six of the states, according to the New York Times. Hospitalizations and deaths among vaccinated people may be higher than previously thought as well.

“Remember when the early vaccine studies came out, it was like nobody gets hospitalized, nobody dies,” Robert Wachter, MD, chairman of the department of medicine at the University of California, San Francisco, said in an interview. “That clearly is not true.”

The New York Times analyzed data in seven states – California, Colorado, Massachusetts, Oregon, Utah, Vermont, and Virginia – that are tracking the most detailed information. The trends in these states may not reflect the numbers throughout the country, the newspaper reported.

Even still, the numbers back up the idea that vaccinated people may need booster shots this fall to support their earlier vaccine doses. Federal health officials are scheduled to approve the extra shots in coming weeks, potentially in September. The first people to receive booster shots will likely be health care workers and nursing home residents who took the first vaccines in December and January.

“If the chances of a breakthrough infection have gone up considerably, and I think the evidence is clear that they have, and the level of protection against severe illness is no longer as robust as it was, I think the case for boosters goes up pretty quickly,” Dr. Wachter said.

Previous analyses of breakthrough cases included data from June and earlier, the newspaper reported. But since July, COVID-19 cases have soared again because of the Delta variant, and the most recent numbers show an uptick among vaccinated people. In Los Angeles County, for instance, fully vaccinated people account for 20% of new COVID-19 cases, which is up from 11% in May, 5% in April, and 2% in March, according to a late July report from the Los Angeles County Department of Public Health.

What’s more, breakthrough infections in the seven states accounted for 12%-24% of COVID-19 hospitalizations in those states. About 8,000 breakthrough hospitalizations have been reported to the CDC. Still, the overall numbers remain low – in California, for instance, about 1,615 people have been hospitalized with breakthrough infections, which accounts for 0.007% of the state’s 22 million vaccinated people, the Times reported.

The breakthrough infections appear to be more severe among vaccinated people who are older or have weakened immune systems. About 74% of breakthrough cases are among adults 65 or older, the CDC reported.

The increase may shift how vaccinated people see their risks for infection and interact with loved ones. Public health officials have suggested that people follow some COVID-19 safety protocols again, such as wearing masks in public indoor spaces regardless of vaccination status.

As the Delta variant continues to circulate this fall, public health researchers will be researching more about breakthrough cases among vaccinated people, including whether they have prolonged symptoms and how easily they may pass the virus to others.

“I think some of us have been challenged by the numbers of clusters that we’ve seen,” Michael Osterholm, PhD, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, told this news organization.

“I think that really needs to be examined more,” he said.

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

The U.S. Food and Drug Administration has approved Pfizer’s TicoVac vaccine for the treatment of tick-borne encephalitis (TBE). The vaccine is approved outside of the United States, and more than 170 million doses have been administered since 1976. The World Health Organization recommends vaccination for everyone in areas where the annual incidence of clinical disease is highly endemic, defined as more than five cases per 100,000 population, which is primarily the Baltic countries of Europe but includes some regions of Central and East Asia.

GlaxoSmithKline’s Encepur is also approved outside the United States, as is a vaccine from China and two from Russia. The efficacy of all the vaccines is greater than 95%. Pfizer’s protection is 98.7% to 100.0% after the three-dose course. With the new approval, American travelers will be able to get immunized before their departure instead of waiting until they are overseas to start the series.

TicoVac can cause injection-site pain, headache, myalgia, and fever, as is typical with many vaccines.
 

Tick-borne encephalitis

TBE is caused by a flavivirus and is transmitted by the bite of an infected Ixodes scapularis, or deer tick. Like the Powassan virus, another flavivirus, infection can be transmitted in minutes through the tick’s saliva, so early removal of the tick might not prevent illness. This is different than Lyme disease, where vigilance and early removal of the tick can prevent transmission.

Reservoirs for the virus include mice, voles, and shrews. Large mammals (deer, sheep, cattle, goats) also serve to support tick multiplication. In addition to tick bites, ingestion of unpasteurized milk from infected mammals can transmit TBE.

TBE symptoms can range from none to severe encephalitis (brain inflammation). One-quarter of infected people develop encephalitis. Most recover fully, but one-third of those infected can develop lifelong damage and paralysis or cognitive deficits. Death is rare, except in those infected with the Russian strain.

The first phase of a TBE infection is typical of viral infections, with nonspecific fever, headache, nausea, and myalgia. The next phase involves an asymptomatic interval of about a week (range, 1 to 33 days), followed by symptoms of a central nervous system infection.

There is no treatment for TBE and no antivirals with proven benefit. However, a recent case report describes the successful treatment of TBE with favipiravir.

For now, if you are unvaccinated, prevention is the only viable option. If you plan to travel to an endemic region and anticipate participating in outdoor activities (such as hunting or hiking), wear permethrin-treated clothes, use an insecticide, and don’t eat or drink unpasteurized dairy products.

Judy Stone, MD, is an infectious disease specialist and author of Resilience: One Family’s Story of Hope and Triumph Over Evil and of Conducting Clinical Research, the essential guide to the topic. You can find her at drjudystone.com or on Twitter @drjudystone.

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

The U.S. Food and Drug Administration has approved Pfizer’s TicoVac vaccine for the treatment of tick-borne encephalitis (TBE). The vaccine is approved outside of the United States, and more than 170 million doses have been administered since 1976. The World Health Organization recommends vaccination for everyone in areas where the annual incidence of clinical disease is highly endemic, defined as more than five cases per 100,000 population, which is primarily the Baltic countries of Europe but includes some regions of Central and East Asia.

GlaxoSmithKline’s Encepur is also approved outside the United States, as is a vaccine from China and two from Russia. The efficacy of all the vaccines is greater than 95%. Pfizer’s protection is 98.7% to 100.0% after the three-dose course. With the new approval, American travelers will be able to get immunized before their departure instead of waiting until they are overseas to start the series.

TicoVac can cause injection-site pain, headache, myalgia, and fever, as is typical with many vaccines.
 

Tick-borne encephalitis

TBE is caused by a flavivirus and is transmitted by the bite of an infected Ixodes scapularis, or deer tick. Like the Powassan virus, another flavivirus, infection can be transmitted in minutes through the tick’s saliva, so early removal of the tick might not prevent illness. This is different than Lyme disease, where vigilance and early removal of the tick can prevent transmission.

Reservoirs for the virus include mice, voles, and shrews. Large mammals (deer, sheep, cattle, goats) also serve to support tick multiplication. In addition to tick bites, ingestion of unpasteurized milk from infected mammals can transmit TBE.

TBE symptoms can range from none to severe encephalitis (brain inflammation). One-quarter of infected people develop encephalitis. Most recover fully, but one-third of those infected can develop lifelong damage and paralysis or cognitive deficits. Death is rare, except in those infected with the Russian strain.

The first phase of a TBE infection is typical of viral infections, with nonspecific fever, headache, nausea, and myalgia. The next phase involves an asymptomatic interval of about a week (range, 1 to 33 days), followed by symptoms of a central nervous system infection.

There is no treatment for TBE and no antivirals with proven benefit. However, a recent case report describes the successful treatment of TBE with favipiravir.

For now, if you are unvaccinated, prevention is the only viable option. If you plan to travel to an endemic region and anticipate participating in outdoor activities (such as hunting or hiking), wear permethrin-treated clothes, use an insecticide, and don’t eat or drink unpasteurized dairy products.

Judy Stone, MD, is an infectious disease specialist and author of Resilience: One Family’s Story of Hope and Triumph Over Evil and of Conducting Clinical Research, the essential guide to the topic. You can find her at drjudystone.com or on Twitter @drjudystone.

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

The U.S. Food and Drug Administration has approved Pfizer’s TicoVac vaccine for the treatment of tick-borne encephalitis (TBE). The vaccine is approved outside of the United States, and more than 170 million doses have been administered since 1976. The World Health Organization recommends vaccination for everyone in areas where the annual incidence of clinical disease is highly endemic, defined as more than five cases per 100,000 population, which is primarily the Baltic countries of Europe but includes some regions of Central and East Asia.

GlaxoSmithKline’s Encepur is also approved outside the United States, as is a vaccine from China and two from Russia. The efficacy of all the vaccines is greater than 95%. Pfizer’s protection is 98.7% to 100.0% after the three-dose course. With the new approval, American travelers will be able to get immunized before their departure instead of waiting until they are overseas to start the series.

TicoVac can cause injection-site pain, headache, myalgia, and fever, as is typical with many vaccines.
 

Tick-borne encephalitis

TBE is caused by a flavivirus and is transmitted by the bite of an infected Ixodes scapularis, or deer tick. Like the Powassan virus, another flavivirus, infection can be transmitted in minutes through the tick’s saliva, so early removal of the tick might not prevent illness. This is different than Lyme disease, where vigilance and early removal of the tick can prevent transmission.

Reservoirs for the virus include mice, voles, and shrews. Large mammals (deer, sheep, cattle, goats) also serve to support tick multiplication. In addition to tick bites, ingestion of unpasteurized milk from infected mammals can transmit TBE.

TBE symptoms can range from none to severe encephalitis (brain inflammation). One-quarter of infected people develop encephalitis. Most recover fully, but one-third of those infected can develop lifelong damage and paralysis or cognitive deficits. Death is rare, except in those infected with the Russian strain.

The first phase of a TBE infection is typical of viral infections, with nonspecific fever, headache, nausea, and myalgia. The next phase involves an asymptomatic interval of about a week (range, 1 to 33 days), followed by symptoms of a central nervous system infection.

There is no treatment for TBE and no antivirals with proven benefit. However, a recent case report describes the successful treatment of TBE with favipiravir.

For now, if you are unvaccinated, prevention is the only viable option. If you plan to travel to an endemic region and anticipate participating in outdoor activities (such as hunting or hiking), wear permethrin-treated clothes, use an insecticide, and don’t eat or drink unpasteurized dairy products.

Judy Stone, MD, is an infectious disease specialist and author of Resilience: One Family’s Story of Hope and Triumph Over Evil and of Conducting Clinical Research, the essential guide to the topic. You can find her at drjudystone.com or on Twitter @drjudystone.

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

Weekly cases of COVID-19 in children topped 100,000 for the first time since early February, according to the American Academy of Pediatrics and the Children’s Hospital Association.

A 29% increase in reported cases over the previous week brought the count for Aug. 6-12 to over 121,000, making it the worst week for new infections in children since Jan. 29 to Feb. 4, the AAP and CHA said in their weekly COVD-19 report. The recent surge in child COVID has also brought a record high in hospitalizations and shortages of pediatric ICU beds in some areas.

The 121,000 new cases represent an increase of almost 1,400% since June 18-24, when the weekly tally was just 8,447 and at its lowest point in over a year, the AAP/CHA data show.

On the vaccination front in the last week (Aug. 10-16), vaccine initiation for 12- to 17-year-olds was fairly robust but still down slightly, compared with the previous week. Just over 402,000 children aged 12-15 years received a first vaccination, which was down slightly from 411,000 the week before but still higher than any of the 6 weeks from June 22 to Aug. 2, based on data from the Centers for Disease Control and Prevention. Vaccinations were down by a similar margin for 15- to-17-year-olds.

Over 10.9 million children aged 12-17 have had at least one dose of COVID-19 vaccine administered, of whom 8.1 million are fully vaccinated. Among those aged 12-15 years, 44.5% have gotten at least one dose and 31.8% are fully vaccinated, with corresponding figures of 53.9% and 42.5% for 16- and 17-year-olds, according to the CDC’s COVID Data Tracker.

The number of COVID-19 cases reported in children since the start of the pandemic is up to 4.4 million, which makes up 14.4% of all cases in the United States, the AAP and CHA said. Other cumulative figures through Aug. 12 include almost 18,000 hospitalizations – reported by 23 states and New York City – and 378 deaths – reported by 43 states, New York City, Puerto Rico, and Guam.

In the latest edition of their ongoing report, compiled using state data since the summer of 2020, the two groups noted that, “in the summer of 2021, some states have revised cases counts previously reported, begun reporting less frequently, or dropped metrics previously reported.” Among those states are Nebraska, which shut down its online COVID dashboard in late June, and Alabama, which stopped reporting cumulative cases and deaths after July 29.

[email protected]

Weekly cases of COVID-19 in children topped 100,000 for the first time since early February, according to the American Academy of Pediatrics and the Children’s Hospital Association.

A 29% increase in reported cases over the previous week brought the count for Aug. 6-12 to over 121,000, making it the worst week for new infections in children since Jan. 29 to Feb. 4, the AAP and CHA said in their weekly COVD-19 report. The recent surge in child COVID has also brought a record high in hospitalizations and shortages of pediatric ICU beds in some areas.

The 121,000 new cases represent an increase of almost 1,400% since June 18-24, when the weekly tally was just 8,447 and at its lowest point in over a year, the AAP/CHA data show.

On the vaccination front in the last week (Aug. 10-16), vaccine initiation for 12- to 17-year-olds was fairly robust but still down slightly, compared with the previous week. Just over 402,000 children aged 12-15 years received a first vaccination, which was down slightly from 411,000 the week before but still higher than any of the 6 weeks from June 22 to Aug. 2, based on data from the Centers for Disease Control and Prevention. Vaccinations were down by a similar margin for 15- to-17-year-olds.

Over 10.9 million children aged 12-17 have had at least one dose of COVID-19 vaccine administered, of whom 8.1 million are fully vaccinated. Among those aged 12-15 years, 44.5% have gotten at least one dose and 31.8% are fully vaccinated, with corresponding figures of 53.9% and 42.5% for 16- and 17-year-olds, according to the CDC’s COVID Data Tracker.

The number of COVID-19 cases reported in children since the start of the pandemic is up to 4.4 million, which makes up 14.4% of all cases in the United States, the AAP and CHA said. Other cumulative figures through Aug. 12 include almost 18,000 hospitalizations – reported by 23 states and New York City – and 378 deaths – reported by 43 states, New York City, Puerto Rico, and Guam.

In the latest edition of their ongoing report, compiled using state data since the summer of 2020, the two groups noted that, “in the summer of 2021, some states have revised cases counts previously reported, begun reporting less frequently, or dropped metrics previously reported.” Among those states are Nebraska, which shut down its online COVID dashboard in late June, and Alabama, which stopped reporting cumulative cases and deaths after July 29.

[email protected]

Weekly cases of COVID-19 in children topped 100,000 for the first time since early February, according to the American Academy of Pediatrics and the Children’s Hospital Association.

A 29% increase in reported cases over the previous week brought the count for Aug. 6-12 to over 121,000, making it the worst week for new infections in children since Jan. 29 to Feb. 4, the AAP and CHA said in their weekly COVD-19 report. The recent surge in child COVID has also brought a record high in hospitalizations and shortages of pediatric ICU beds in some areas.

The 121,000 new cases represent an increase of almost 1,400% since June 18-24, when the weekly tally was just 8,447 and at its lowest point in over a year, the AAP/CHA data show.

On the vaccination front in the last week (Aug. 10-16), vaccine initiation for 12- to 17-year-olds was fairly robust but still down slightly, compared with the previous week. Just over 402,000 children aged 12-15 years received a first vaccination, which was down slightly from 411,000 the week before but still higher than any of the 6 weeks from June 22 to Aug. 2, based on data from the Centers for Disease Control and Prevention. Vaccinations were down by a similar margin for 15- to-17-year-olds.

Over 10.9 million children aged 12-17 have had at least one dose of COVID-19 vaccine administered, of whom 8.1 million are fully vaccinated. Among those aged 12-15 years, 44.5% have gotten at least one dose and 31.8% are fully vaccinated, with corresponding figures of 53.9% and 42.5% for 16- and 17-year-olds, according to the CDC’s COVID Data Tracker.

The number of COVID-19 cases reported in children since the start of the pandemic is up to 4.4 million, which makes up 14.4% of all cases in the United States, the AAP and CHA said. Other cumulative figures through Aug. 12 include almost 18,000 hospitalizations – reported by 23 states and New York City – and 378 deaths – reported by 43 states, New York City, Puerto Rico, and Guam.

In the latest edition of their ongoing report, compiled using state data since the summer of 2020, the two groups noted that, “in the summer of 2021, some states have revised cases counts previously reported, begun reporting less frequently, or dropped metrics previously reported.” Among those states are Nebraska, which shut down its online COVID dashboard in late June, and Alabama, which stopped reporting cumulative cases and deaths after July 29.

[email protected]

The Diagnosis: Disseminated Coccidioidomycosis

A6-mm punch biopsy was performed at the periphery of the ulcerated cutaneous lesion on the chest revealing extensive spherules. Serum antibody immunodiffusion for histoplasmosis and blastomycoses both were negative; however, B-D-glucan assay was positive at 364 pg/mL (reference range: <60 pg/mL, negative). Initial HIV-1 and HIV-2 antibody and antigen testing was negative as well as repeat testing at 3 weeks. Immunodiffusion for Coccidioides IgM and IgG was positive, and cocci antibody IgG complement fixation assays were positive at titers of 1:64 (reference range: <1:2, negative). A computed tomography needle-guided biopsy of the paravertebral soft tissue was performed. Gram stains and bacterial cultures of the biopsies were negative; however, fungal cultures were notable for growth of Coccidioides. Given the pertinent testing, a diagnosis of disseminated coccidioidomycosis was made.

Cutaneous coccidioidomycosis can occur in 3 situations: direct inoculation (primary cutaneous coccidioidomycosis), disseminated infection (disseminated cutaneous coccidioidomycosis), or as a reactive component of pulmonary infection.^1,2 Of them, primary and disseminated cutaneous coccidioidomycosis are organism specific and display characteristic spherules and fungus on histopathology and cultures, respectively. Reactive coccidioidomycosis differs from organism-specific disease, as it does not contain spherules in histopathologic sections of tissue biopsies.¹ Reactive skin manifestations occur in 12% to 50% of patients with primary pulmonary infection and include erythema nodosum, erythema multiforme, acute generalized exanthema, reactive interstitial granulomatous dermatitis, and Sweet syndrome.³

Organism-specific cutaneous coccidioidomycosis most often is correlated with hematogenous dissemination of primary pulmonary disease rather than direct inoculation of skin.¹ The skin is the most common site of extrapulmonary involvement in disseminated coccidioidomycosis, and cutaneous lesions have been reported in 15% to 67% of cases of disseminated disease.^1,4 In cutaneous disseminated disease, nodules, papules, macules, and verrucous plaques have been described. In a case series of disseminated cutaneous coccidioidomycosis, nodules were the most common cutaneous presentation and occurred in 39% (7/18) of patients, while verrucous plaques were the rarest and occurred in only 6% (1/18) of patients.⁵

The rate of coccidioidomycosis dissemination varies based on exposure and patient characteristics. Increased rates of dissemination have been reported in patients of African and Filipino descent, along with individuals that are immunosuppressed due to disease or medical therapy. Dissemination is clinically significant, as patients with multifocal dissemination have a greater than 50% risk for mortality.⁶

Disseminated coccidioidomycosis is a relatively rare manifestation of Coccidioides infection; approximately 1.6% of patients exposed to and infected with Coccidioides ultimately will develop systemic or disseminated disease.^7,8 Although the rates of primary pulmonary infection are similar between patients of varying ethnicities, the rates of dissemination are higher in patients of African and Filipino ethnicity.⁸ In population studies of coccidioidomycosis (N=332), Black patients represented 33.3% (4/12) of disseminated cases but only 8.7% of Coccidioides cases overall.⁷

Population studies of Black patients with coccidioidomycosis have shown a 4-fold higher predisposition for severe disease compared to mild disease.⁹ Spondylitis and meningitis also are disproportionately more common in Black patients.⁸ Black patients comprised 75% of all spondylitis cases in a cohort where only 25% of patients were Black. Additionally, 33% of all meningitis cases occurred in Black patients in a cohort where 8% of total cases were Black patients.⁸ Within the United States, the highest rates of coccidioidomycosis meningitis are seen in Black patients.¹⁰

The pathophysiology underlying the increased susceptibility of individuals of African or Filipino descent to disseminated and severe coccidioidomycosis remains unknown.⁸ The level of vulnerability within this patient population has no association with increased environmental exposure or poor immunologic response to Coccidioides, as demonstrated by the ability of these populations to respond to experimental vaccination and skin testing (spherulin, coccidioidin) to a similar extent as other ethnicities.⁸ Class II HLA-DRB1*1301 alleles have been associated with an increased risk for severe disseminated Coccidioides infection regardless of ethnicity; however, these alleles are not overrepresented in these patient populations.⁸

In patients with primary pulmonary coccidioidomycosis with no evidence of dissemination, guidelines generally recommend offering treatment to groups at high risk of dissemination, such as pregnant women and patients with diabetes mellitus. Given the high incidence of disseminated and severe disease in Black and Filipino patients, some guidelines endorse treatment of all cases of coccidioidomycosis in this patient population.⁸ No current data are available to help determine whether this broad treatment approach reduces the development of disseminated infection in these populations. Frequent monitoring for disease progression and/or dissemination involving clinical and laboratory reevaluation every 3 months for 2 years is highly recommended.⁸

Treatment generally is based on location and severity of infection, with disseminated nonmeningeal infection being treated with oral azole therapy (ketoconazole, itraconazole, or fluconazole).¹¹ If there is involvement of the central nervous system structures or rapidly worsening disease despite azole therapy, amphotericin B is recommended at 0.5 to 0.7 mg/kg daily. In patients with disseminated meningeal infection, oral fluconazole (800–1000 mg/d) or a combination of an azole with intrathecal amphotericin B (0.01–1.5 mg/dose, interval ranging from daily to 1 week) is recommended to improve response.¹¹

The differential diagnosis of cutaneous disseminated coccidioidomycosis is broad and includes other systemic endemic mycoses (histoplasmosis, blastomycosis) and infections (mycobacteria, leishmania). Lupus vulgaris, a form of cutaneous tuberculosis, presents as a palpable tubercular lesion that may coalesce into erythematous plaques, which may mimic endemic mycoses, especially in patients with risk factors for both infectious etiologies such as our patient.¹² Disseminated histoplasmosis may present as polymorphic plaques, pustules, nodules, and ulcerated skin lesions, whereas disseminated blastomycosis characteristically presents as a crusted verrucous lesion with raised borders and painful ulcers, both of which may mimic coccidioidomycosis.¹³ Biopsy would reveal the characteristic intracellular yeast in Histoplasma capsulatum and broad-based budding yeast form of Blastomyces dermatitidis in histoplasmosis and blastomycosis, respectively, in contrast to the spherules seen in our patient’s biopsy.¹³ Localized cutaneous leishmaniasis initially develops as a nodular or papular lesion and can progress to open ulcerations with raised borders. Biopsy and histopathology would reveal round protozoal amastigotes.¹⁴ Other diagnoses that should be considered include mycetoma, nocardiosis, and sporotrichosis.¹⁵ As the cutaneous manifestations of Coccidioides infections are varied, a broad differential diagnosis should be maintained, and probable environmental and infectious exposures should be considered prior to ordering diagnostic studies.

The Diagnosis: Disseminated Coccidioidomycosis

A6-mm punch biopsy was performed at the periphery of the ulcerated cutaneous lesion on the chest revealing extensive spherules. Serum antibody immunodiffusion for histoplasmosis and blastomycoses both were negative; however, B-D-glucan assay was positive at 364 pg/mL (reference range: <60 pg/mL, negative). Initial HIV-1 and HIV-2 antibody and antigen testing was negative as well as repeat testing at 3 weeks. Immunodiffusion for Coccidioides IgM and IgG was positive, and cocci antibody IgG complement fixation assays were positive at titers of 1:64 (reference range: <1:2, negative). A computed tomography needle-guided biopsy of the paravertebral soft tissue was performed. Gram stains and bacterial cultures of the biopsies were negative; however, fungal cultures were notable for growth of Coccidioides. Given the pertinent testing, a diagnosis of disseminated coccidioidomycosis was made.

Cutaneous coccidioidomycosis can occur in 3 situations: direct inoculation (primary cutaneous coccidioidomycosis), disseminated infection (disseminated cutaneous coccidioidomycosis), or as a reactive component of pulmonary infection.^1,2 Of them, primary and disseminated cutaneous coccidioidomycosis are organism specific and display characteristic spherules and fungus on histopathology and cultures, respectively. Reactive coccidioidomycosis differs from organism-specific disease, as it does not contain spherules in histopathologic sections of tissue biopsies.¹ Reactive skin manifestations occur in 12% to 50% of patients with primary pulmonary infection and include erythema nodosum, erythema multiforme, acute generalized exanthema, reactive interstitial granulomatous dermatitis, and Sweet syndrome.³

Organism-specific cutaneous coccidioidomycosis most often is correlated with hematogenous dissemination of primary pulmonary disease rather than direct inoculation of skin.¹ The skin is the most common site of extrapulmonary involvement in disseminated coccidioidomycosis, and cutaneous lesions have been reported in 15% to 67% of cases of disseminated disease.^1,4 In cutaneous disseminated disease, nodules, papules, macules, and verrucous plaques have been described. In a case series of disseminated cutaneous coccidioidomycosis, nodules were the most common cutaneous presentation and occurred in 39% (7/18) of patients, while verrucous plaques were the rarest and occurred in only 6% (1/18) of patients.⁵

The rate of coccidioidomycosis dissemination varies based on exposure and patient characteristics. Increased rates of dissemination have been reported in patients of African and Filipino descent, along with individuals that are immunosuppressed due to disease or medical therapy. Dissemination is clinically significant, as patients with multifocal dissemination have a greater than 50% risk for mortality.⁶

Disseminated coccidioidomycosis is a relatively rare manifestation of Coccidioides infection; approximately 1.6% of patients exposed to and infected with Coccidioides ultimately will develop systemic or disseminated disease.^7,8 Although the rates of primary pulmonary infection are similar between patients of varying ethnicities, the rates of dissemination are higher in patients of African and Filipino ethnicity.⁸ In population studies of coccidioidomycosis (N=332), Black patients represented 33.3% (4/12) of disseminated cases but only 8.7% of Coccidioides cases overall.⁷

Population studies of Black patients with coccidioidomycosis have shown a 4-fold higher predisposition for severe disease compared to mild disease.⁹ Spondylitis and meningitis also are disproportionately more common in Black patients.⁸ Black patients comprised 75% of all spondylitis cases in a cohort where only 25% of patients were Black. Additionally, 33% of all meningitis cases occurred in Black patients in a cohort where 8% of total cases were Black patients.⁸ Within the United States, the highest rates of coccidioidomycosis meningitis are seen in Black patients.¹⁰

The pathophysiology underlying the increased susceptibility of individuals of African or Filipino descent to disseminated and severe coccidioidomycosis remains unknown.⁸ The level of vulnerability within this patient population has no association with increased environmental exposure or poor immunologic response to Coccidioides, as demonstrated by the ability of these populations to respond to experimental vaccination and skin testing (spherulin, coccidioidin) to a similar extent as other ethnicities.⁸ Class II HLA-DRB1*1301 alleles have been associated with an increased risk for severe disseminated Coccidioides infection regardless of ethnicity; however, these alleles are not overrepresented in these patient populations.⁸

In patients with primary pulmonary coccidioidomycosis with no evidence of dissemination, guidelines generally recommend offering treatment to groups at high risk of dissemination, such as pregnant women and patients with diabetes mellitus. Given the high incidence of disseminated and severe disease in Black and Filipino patients, some guidelines endorse treatment of all cases of coccidioidomycosis in this patient population.⁸ No current data are available to help determine whether this broad treatment approach reduces the development of disseminated infection in these populations. Frequent monitoring for disease progression and/or dissemination involving clinical and laboratory reevaluation every 3 months for 2 years is highly recommended.⁸

Treatment generally is based on location and severity of infection, with disseminated nonmeningeal infection being treated with oral azole therapy (ketoconazole, itraconazole, or fluconazole).¹¹ If there is involvement of the central nervous system structures or rapidly worsening disease despite azole therapy, amphotericin B is recommended at 0.5 to 0.7 mg/kg daily. In patients with disseminated meningeal infection, oral fluconazole (800–1000 mg/d) or a combination of an azole with intrathecal amphotericin B (0.01–1.5 mg/dose, interval ranging from daily to 1 week) is recommended to improve response.¹¹

The differential diagnosis of cutaneous disseminated coccidioidomycosis is broad and includes other systemic endemic mycoses (histoplasmosis, blastomycosis) and infections (mycobacteria, leishmania). Lupus vulgaris, a form of cutaneous tuberculosis, presents as a palpable tubercular lesion that may coalesce into erythematous plaques, which may mimic endemic mycoses, especially in patients with risk factors for both infectious etiologies such as our patient.¹² Disseminated histoplasmosis may present as polymorphic plaques, pustules, nodules, and ulcerated skin lesions, whereas disseminated blastomycosis characteristically presents as a crusted verrucous lesion with raised borders and painful ulcers, both of which may mimic coccidioidomycosis.¹³ Biopsy would reveal the characteristic intracellular yeast in Histoplasma capsulatum and broad-based budding yeast form of Blastomyces dermatitidis in histoplasmosis and blastomycosis, respectively, in contrast to the spherules seen in our patient’s biopsy.¹³ Localized cutaneous leishmaniasis initially develops as a nodular or papular lesion and can progress to open ulcerations with raised borders. Biopsy and histopathology would reveal round protozoal amastigotes.¹⁴ Other diagnoses that should be considered include mycetoma, nocardiosis, and sporotrichosis.¹⁵ As the cutaneous manifestations of Coccidioides infections are varied, a broad differential diagnosis should be maintained, and probable environmental and infectious exposures should be considered prior to ordering diagnostic studies.

The Diagnosis: Disseminated Coccidioidomycosis

A6-mm punch biopsy was performed at the periphery of the ulcerated cutaneous lesion on the chest revealing extensive spherules. Serum antibody immunodiffusion for histoplasmosis and blastomycoses both were negative; however, B-D-glucan assay was positive at 364 pg/mL (reference range: <60 pg/mL, negative). Initial HIV-1 and HIV-2 antibody and antigen testing was negative as well as repeat testing at 3 weeks. Immunodiffusion for Coccidioides IgM and IgG was positive, and cocci antibody IgG complement fixation assays were positive at titers of 1:64 (reference range: <1:2, negative). A computed tomography needle-guided biopsy of the paravertebral soft tissue was performed. Gram stains and bacterial cultures of the biopsies were negative; however, fungal cultures were notable for growth of Coccidioides. Given the pertinent testing, a diagnosis of disseminated coccidioidomycosis was made.

Cutaneous coccidioidomycosis can occur in 3 situations: direct inoculation (primary cutaneous coccidioidomycosis), disseminated infection (disseminated cutaneous coccidioidomycosis), or as a reactive component of pulmonary infection.^1,2 Of them, primary and disseminated cutaneous coccidioidomycosis are organism specific and display characteristic spherules and fungus on histopathology and cultures, respectively. Reactive coccidioidomycosis differs from organism-specific disease, as it does not contain spherules in histopathologic sections of tissue biopsies.¹ Reactive skin manifestations occur in 12% to 50% of patients with primary pulmonary infection and include erythema nodosum, erythema multiforme, acute generalized exanthema, reactive interstitial granulomatous dermatitis, and Sweet syndrome.³

Organism-specific cutaneous coccidioidomycosis most often is correlated with hematogenous dissemination of primary pulmonary disease rather than direct inoculation of skin.¹ The skin is the most common site of extrapulmonary involvement in disseminated coccidioidomycosis, and cutaneous lesions have been reported in 15% to 67% of cases of disseminated disease.^1,4 In cutaneous disseminated disease, nodules, papules, macules, and verrucous plaques have been described. In a case series of disseminated cutaneous coccidioidomycosis, nodules were the most common cutaneous presentation and occurred in 39% (7/18) of patients, while verrucous plaques were the rarest and occurred in only 6% (1/18) of patients.⁵

The rate of coccidioidomycosis dissemination varies based on exposure and patient characteristics. Increased rates of dissemination have been reported in patients of African and Filipino descent, along with individuals that are immunosuppressed due to disease or medical therapy. Dissemination is clinically significant, as patients with multifocal dissemination have a greater than 50% risk for mortality.⁶

Disseminated coccidioidomycosis is a relatively rare manifestation of Coccidioides infection; approximately 1.6% of patients exposed to and infected with Coccidioides ultimately will develop systemic or disseminated disease.^7,8 Although the rates of primary pulmonary infection are similar between patients of varying ethnicities, the rates of dissemination are higher in patients of African and Filipino ethnicity.⁸ In population studies of coccidioidomycosis (N=332), Black patients represented 33.3% (4/12) of disseminated cases but only 8.7% of Coccidioides cases overall.⁷

Population studies of Black patients with coccidioidomycosis have shown a 4-fold higher predisposition for severe disease compared to mild disease.⁹ Spondylitis and meningitis also are disproportionately more common in Black patients.⁸ Black patients comprised 75% of all spondylitis cases in a cohort where only 25% of patients were Black. Additionally, 33% of all meningitis cases occurred in Black patients in a cohort where 8% of total cases were Black patients.⁸ Within the United States, the highest rates of coccidioidomycosis meningitis are seen in Black patients.¹⁰

The pathophysiology underlying the increased susceptibility of individuals of African or Filipino descent to disseminated and severe coccidioidomycosis remains unknown.⁸ The level of vulnerability within this patient population has no association with increased environmental exposure or poor immunologic response to Coccidioides, as demonstrated by the ability of these populations to respond to experimental vaccination and skin testing (spherulin, coccidioidin) to a similar extent as other ethnicities.⁸ Class II HLA-DRB1*1301 alleles have been associated with an increased risk for severe disseminated Coccidioides infection regardless of ethnicity; however, these alleles are not overrepresented in these patient populations.⁸

In patients with primary pulmonary coccidioidomycosis with no evidence of dissemination, guidelines generally recommend offering treatment to groups at high risk of dissemination, such as pregnant women and patients with diabetes mellitus. Given the high incidence of disseminated and severe disease in Black and Filipino patients, some guidelines endorse treatment of all cases of coccidioidomycosis in this patient population.⁸ No current data are available to help determine whether this broad treatment approach reduces the development of disseminated infection in these populations. Frequent monitoring for disease progression and/or dissemination involving clinical and laboratory reevaluation every 3 months for 2 years is highly recommended.⁸

Treatment generally is based on location and severity of infection, with disseminated nonmeningeal infection being treated with oral azole therapy (ketoconazole, itraconazole, or fluconazole).¹¹ If there is involvement of the central nervous system structures or rapidly worsening disease despite azole therapy, amphotericin B is recommended at 0.5 to 0.7 mg/kg daily. In patients with disseminated meningeal infection, oral fluconazole (800–1000 mg/d) or a combination of an azole with intrathecal amphotericin B (0.01–1.5 mg/dose, interval ranging from daily to 1 week) is recommended to improve response.¹¹

The differential diagnosis of cutaneous disseminated coccidioidomycosis is broad and includes other systemic endemic mycoses (histoplasmosis, blastomycosis) and infections (mycobacteria, leishmania). Lupus vulgaris, a form of cutaneous tuberculosis, presents as a palpable tubercular lesion that may coalesce into erythematous plaques, which may mimic endemic mycoses, especially in patients with risk factors for both infectious etiologies such as our patient.¹² Disseminated histoplasmosis may present as polymorphic plaques, pustules, nodules, and ulcerated skin lesions, whereas disseminated blastomycosis characteristically presents as a crusted verrucous lesion with raised borders and painful ulcers, both of which may mimic coccidioidomycosis.¹³ Biopsy would reveal the characteristic intracellular yeast in Histoplasma capsulatum and broad-based budding yeast form of Blastomyces dermatitidis in histoplasmosis and blastomycosis, respectively, in contrast to the spherules seen in our patient’s biopsy.¹³ Localized cutaneous leishmaniasis initially develops as a nodular or papular lesion and can progress to open ulcerations with raised borders. Biopsy and histopathology would reveal round protozoal amastigotes.¹⁴ Other diagnoses that should be considered include mycetoma, nocardiosis, and sporotrichosis.¹⁵ As the cutaneous manifestations of Coccidioides infections are varied, a broad differential diagnosis should be maintained, and probable environmental and infectious exposures should be considered prior to ordering diagnostic studies.

“I want my child to go back to school,” the mother said to me. “I just want you to tell me it will be safe.”

As the summer break winds down for children across the United States, pediatric COVID-19 cases are rising. According to the American Academy of Pediatrics, nearly 94,000 cases were reported for the week ending Aug. 5, more than double the case count from 2 weeks earlier.¹

Anecdotally, some children’s hospitals are reporting an increase in pediatric COVID-19 admissions. In the hospital in which I practice, we are seeing numbers similar to those we saw in December and January: a typical daily census of 10 kids admitted with COVID-19, with 4 of them in the intensive care unit. It is a stark contrast to June when, most days, we had no patients with COVID-19 in the hospital. About half of our hospitalized patients are too young to be vaccinated against COVID-19, while the rest are unvaccinated children 12 years and older.

Vaccination of eligible children and teachers is an essential strategy for preventing the spread of COVID-19 in schools, but as children head back to school, immunization rates of educators are largely unknown and are suboptimal among students in most states. As of Aug. 11, 10.7 million U.S. children had received at least one dose of COVID-19 vaccine, representing 43% of 12- to 15-year-olds and 53% of 16- to 17-year-olds.² Rates vary substantially by state, with more than 70% of kids in Vermont receiving at least one dose of vaccine, compared with less than 25% in Wyoming and Alabama.

Still, in the absence of robust immunization rates, we have data that schools can still reopen successfully. We need to follow the science and implement universal masking, a safe, effective, and practical mitigation strategy.

It worked in Wisconsin. Seventeen K-12 schools in rural Wisconsin opened last fall for in-person instruction.³ Reported compliance with masking was high, ranging from 92.1% to 97.4%, and in-school transmission of COVID-19 was low, with seven cases among 4,876 students.

It worked in Salt Lake City.⁴ In 20 elementary schools open for in-person instruction Dec. 3, 2020, to Jan. 31, 2021, compliance with mask-wearing was high and in-school transmission was very low, despite a high community incidence of COVID-19. Notably, students’ classroom seats were less than 6 feet apart, suggesting that consistent mask-wearing works even when physical distancing is challenging.

One of the best examples of successful school reopening happened in North Carolina, where pediatricians, pediatric infectious disease specialists, and other experts affiliated with Duke University formed the ABC Science Collaborative to support school districts that requested scientific input to help guide return-to-school policies during the COVID-19 pandemic. From Oct. 26, 2020, to Feb. 28, 2021, the ABC Science Collaborative worked with 13 school districts that were open for in-person instruction using basic mitigation strategies, including universal masking.⁵ During this time period, there were 4,969 community-acquired SARS-CoV-2 infections in the more than 100,000 students and staff present in schools. Transmission to school contacts was identified in only 209 individuals for a secondary attack rate of less than 1%.

Duke investigator Kanecia Zimmerman, MD, told Duke Today, “We know that, if our goal is to reduce transmission of COVID-19 in schools, there are two effective ways to do that: 1. vaccination, 2. masking. In the setting of schools ... the science suggests masking can be extremely effective, particularly for those who can’t get vaccinated while COVID-19 is still circulating.”

Both the AAP⁶ and the Pediatric Infectious Diseases Society⁷ have emphasized the importance of in-person instruction and endorsed universal masking in school. Mask-optional policies or “mask-if-you-are-unvaccinated” policies don’t work, as we have seen in society at large. They are likely to be especially challenging in school settings. Given an option, many, if not most kids, will take off their masks. Kids who leave them on run the risk of stigmatization or bullying.

On Aug. 4, the Centers for Disease Control and Prevention updated its guidance to recommend universal indoor masking for all students, staff, teachers, and visitors to K-12 schools, regardless of vaccination status. Now we’ll have to wait and see if school districts, elected officials, and parents will get on board with masks. ... and we’ll be left to count the number of rising COVID-19 cases that occur until they do.

Case in point: Kids in Greater Clark County, Ind., headed back to school on July 28. Masks were not required on school property, although unvaccinated students and teachers were “strongly encouraged” to wear them.⁸

Over the first 8 days of in-person instruction, schools in Greater Clark County identified 70 cases of COVID-19 in students and quarantined more than 1,100 of the district’s 10,300 students. Only the unvaccinated were required to quarantine. The district began requiring masks in all school buildings on Aug. 9.⁹

The worried mother had one last question for me. “What’s the best mask for a child to wear?” For most kids, a simple, well-fitting cloth mask is fine. The best mask is ultimately the mask a child will wear. A toolkit with practical tips for helping children successfully wear a mask is available on the ABC Science Collaborative website.
 

Dr. Bryant, president of the Pediatric Infectious Diseases Society, is a pediatrician at the University of Louisville (Ky.) and Norton Children’s Hospital, also in Louisville. She said she had no relevant financial disclosures. Email her at [email protected].

References

1. American Academy of Pediatrics. “Children and COVID-19: State-level data report.”

2. American Academy of Pediatrics. “Children and COVID-19 vaccination trends.”

3. Falk A et al. MMWR Morb Mortal Wkly Rep. 2021;70:136-40.

4. Hershow RB et al. MMWR Morb Mortal Wkly Rep 2021;70:442-8.

5. Zimmerman KO et al. Pediatrics. 2021 Jul;e2021052686. doi: 10.1542/peds.2021-052686.

6. American Academy of Pediatrics. “American Academy of Pediatrics updates recommendations for opening schools in fall 2021.”

7. Pediatric Infectious Diseases Society. “PIDS supports universal masking for students, school staff.”

8. Courtney Hayden. WHAS11. “Greater Clark County Schools return to class July 28.”

9. Dustin Vogt. WAVE3 News. “Greater Clark Country Schools to require masks amid 70 positive cases.”

“I want my child to go back to school,” the mother said to me. “I just want you to tell me it will be safe.”

As the summer break winds down for children across the United States, pediatric COVID-19 cases are rising. According to the American Academy of Pediatrics, nearly 94,000 cases were reported for the week ending Aug. 5, more than double the case count from 2 weeks earlier.¹

Anecdotally, some children’s hospitals are reporting an increase in pediatric COVID-19 admissions. In the hospital in which I practice, we are seeing numbers similar to those we saw in December and January: a typical daily census of 10 kids admitted with COVID-19, with 4 of them in the intensive care unit. It is a stark contrast to June when, most days, we had no patients with COVID-19 in the hospital. About half of our hospitalized patients are too young to be vaccinated against COVID-19, while the rest are unvaccinated children 12 years and older.

Vaccination of eligible children and teachers is an essential strategy for preventing the spread of COVID-19 in schools, but as children head back to school, immunization rates of educators are largely unknown and are suboptimal among students in most states. As of Aug. 11, 10.7 million U.S. children had received at least one dose of COVID-19 vaccine, representing 43% of 12- to 15-year-olds and 53% of 16- to 17-year-olds.² Rates vary substantially by state, with more than 70% of kids in Vermont receiving at least one dose of vaccine, compared with less than 25% in Wyoming and Alabama.

Still, in the absence of robust immunization rates, we have data that schools can still reopen successfully. We need to follow the science and implement universal masking, a safe, effective, and practical mitigation strategy.

It worked in Wisconsin. Seventeen K-12 schools in rural Wisconsin opened last fall for in-person instruction.³ Reported compliance with masking was high, ranging from 92.1% to 97.4%, and in-school transmission of COVID-19 was low, with seven cases among 4,876 students.

It worked in Salt Lake City.⁴ In 20 elementary schools open for in-person instruction Dec. 3, 2020, to Jan. 31, 2021, compliance with mask-wearing was high and in-school transmission was very low, despite a high community incidence of COVID-19. Notably, students’ classroom seats were less than 6 feet apart, suggesting that consistent mask-wearing works even when physical distancing is challenging.

One of the best examples of successful school reopening happened in North Carolina, where pediatricians, pediatric infectious disease specialists, and other experts affiliated with Duke University formed the ABC Science Collaborative to support school districts that requested scientific input to help guide return-to-school policies during the COVID-19 pandemic. From Oct. 26, 2020, to Feb. 28, 2021, the ABC Science Collaborative worked with 13 school districts that were open for in-person instruction using basic mitigation strategies, including universal masking.⁵ During this time period, there were 4,969 community-acquired SARS-CoV-2 infections in the more than 100,000 students and staff present in schools. Transmission to school contacts was identified in only 209 individuals for a secondary attack rate of less than 1%.

Duke investigator Kanecia Zimmerman, MD, told Duke Today, “We know that, if our goal is to reduce transmission of COVID-19 in schools, there are two effective ways to do that: 1. vaccination, 2. masking. In the setting of schools ... the science suggests masking can be extremely effective, particularly for those who can’t get vaccinated while COVID-19 is still circulating.”

Both the AAP⁶ and the Pediatric Infectious Diseases Society⁷ have emphasized the importance of in-person instruction and endorsed universal masking in school. Mask-optional policies or “mask-if-you-are-unvaccinated” policies don’t work, as we have seen in society at large. They are likely to be especially challenging in school settings. Given an option, many, if not most kids, will take off their masks. Kids who leave them on run the risk of stigmatization or bullying.

On Aug. 4, the Centers for Disease Control and Prevention updated its guidance to recommend universal indoor masking for all students, staff, teachers, and visitors to K-12 schools, regardless of vaccination status. Now we’ll have to wait and see if school districts, elected officials, and parents will get on board with masks. ... and we’ll be left to count the number of rising COVID-19 cases that occur until they do.

Case in point: Kids in Greater Clark County, Ind., headed back to school on July 28. Masks were not required on school property, although unvaccinated students and teachers were “strongly encouraged” to wear them.⁸

Over the first 8 days of in-person instruction, schools in Greater Clark County identified 70 cases of COVID-19 in students and quarantined more than 1,100 of the district’s 10,300 students. Only the unvaccinated were required to quarantine. The district began requiring masks in all school buildings on Aug. 9.⁹

The worried mother had one last question for me. “What’s the best mask for a child to wear?” For most kids, a simple, well-fitting cloth mask is fine. The best mask is ultimately the mask a child will wear. A toolkit with practical tips for helping children successfully wear a mask is available on the ABC Science Collaborative website.
 

Dr. Bryant, president of the Pediatric Infectious Diseases Society, is a pediatrician at the University of Louisville (Ky.) and Norton Children’s Hospital, also in Louisville. She said she had no relevant financial disclosures. Email her at [email protected].

References

1. American Academy of Pediatrics. “Children and COVID-19: State-level data report.”

2. American Academy of Pediatrics. “Children and COVID-19 vaccination trends.”

3. Falk A et al. MMWR Morb Mortal Wkly Rep. 2021;70:136-40.

4. Hershow RB et al. MMWR Morb Mortal Wkly Rep 2021;70:442-8.

5. Zimmerman KO et al. Pediatrics. 2021 Jul;e2021052686. doi: 10.1542/peds.2021-052686.

6. American Academy of Pediatrics. “American Academy of Pediatrics updates recommendations for opening schools in fall 2021.”

7. Pediatric Infectious Diseases Society. “PIDS supports universal masking for students, school staff.”

8. Courtney Hayden. WHAS11. “Greater Clark County Schools return to class July 28.”

9. Dustin Vogt. WAVE3 News. “Greater Clark Country Schools to require masks amid 70 positive cases.”

“I want my child to go back to school,” the mother said to me. “I just want you to tell me it will be safe.”

As the summer break winds down for children across the United States, pediatric COVID-19 cases are rising. According to the American Academy of Pediatrics, nearly 94,000 cases were reported for the week ending Aug. 5, more than double the case count from 2 weeks earlier.¹

Anecdotally, some children’s hospitals are reporting an increase in pediatric COVID-19 admissions. In the hospital in which I practice, we are seeing numbers similar to those we saw in December and January: a typical daily census of 10 kids admitted with COVID-19, with 4 of them in the intensive care unit. It is a stark contrast to June when, most days, we had no patients with COVID-19 in the hospital. About half of our hospitalized patients are too young to be vaccinated against COVID-19, while the rest are unvaccinated children 12 years and older.

Vaccination of eligible children and teachers is an essential strategy for preventing the spread of COVID-19 in schools, but as children head back to school, immunization rates of educators are largely unknown and are suboptimal among students in most states. As of Aug. 11, 10.7 million U.S. children had received at least one dose of COVID-19 vaccine, representing 43% of 12- to 15-year-olds and 53% of 16- to 17-year-olds.² Rates vary substantially by state, with more than 70% of kids in Vermont receiving at least one dose of vaccine, compared with less than 25% in Wyoming and Alabama.

Still, in the absence of robust immunization rates, we have data that schools can still reopen successfully. We need to follow the science and implement universal masking, a safe, effective, and practical mitigation strategy.

It worked in Wisconsin. Seventeen K-12 schools in rural Wisconsin opened last fall for in-person instruction.³ Reported compliance with masking was high, ranging from 92.1% to 97.4%, and in-school transmission of COVID-19 was low, with seven cases among 4,876 students.

It worked in Salt Lake City.⁴ In 20 elementary schools open for in-person instruction Dec. 3, 2020, to Jan. 31, 2021, compliance with mask-wearing was high and in-school transmission was very low, despite a high community incidence of COVID-19. Notably, students’ classroom seats were less than 6 feet apart, suggesting that consistent mask-wearing works even when physical distancing is challenging.

One of the best examples of successful school reopening happened in North Carolina, where pediatricians, pediatric infectious disease specialists, and other experts affiliated with Duke University formed the ABC Science Collaborative to support school districts that requested scientific input to help guide return-to-school policies during the COVID-19 pandemic. From Oct. 26, 2020, to Feb. 28, 2021, the ABC Science Collaborative worked with 13 school districts that were open for in-person instruction using basic mitigation strategies, including universal masking.⁵ During this time period, there were 4,969 community-acquired SARS-CoV-2 infections in the more than 100,000 students and staff present in schools. Transmission to school contacts was identified in only 209 individuals for a secondary attack rate of less than 1%.

Duke investigator Kanecia Zimmerman, MD, told Duke Today, “We know that, if our goal is to reduce transmission of COVID-19 in schools, there are two effective ways to do that: 1. vaccination, 2. masking. In the setting of schools ... the science suggests masking can be extremely effective, particularly for those who can’t get vaccinated while COVID-19 is still circulating.”

Both the AAP⁶ and the Pediatric Infectious Diseases Society⁷ have emphasized the importance of in-person instruction and endorsed universal masking in school. Mask-optional policies or “mask-if-you-are-unvaccinated” policies don’t work, as we have seen in society at large. They are likely to be especially challenging in school settings. Given an option, many, if not most kids, will take off their masks. Kids who leave them on run the risk of stigmatization or bullying.

On Aug. 4, the Centers for Disease Control and Prevention updated its guidance to recommend universal indoor masking for all students, staff, teachers, and visitors to K-12 schools, regardless of vaccination status. Now we’ll have to wait and see if school districts, elected officials, and parents will get on board with masks. ... and we’ll be left to count the number of rising COVID-19 cases that occur until they do.

Case in point: Kids in Greater Clark County, Ind., headed back to school on July 28. Masks were not required on school property, although unvaccinated students and teachers were “strongly encouraged” to wear them.⁸

Over the first 8 days of in-person instruction, schools in Greater Clark County identified 70 cases of COVID-19 in students and quarantined more than 1,100 of the district’s 10,300 students. Only the unvaccinated were required to quarantine. The district began requiring masks in all school buildings on Aug. 9.⁹

The worried mother had one last question for me. “What’s the best mask for a child to wear?” For most kids, a simple, well-fitting cloth mask is fine. The best mask is ultimately the mask a child will wear. A toolkit with practical tips for helping children successfully wear a mask is available on the ABC Science Collaborative website.
 

Dr. Bryant, president of the Pediatric Infectious Diseases Society, is a pediatrician at the University of Louisville (Ky.) and Norton Children’s Hospital, also in Louisville. She said she had no relevant financial disclosures. Email her at [email protected].

References

1. American Academy of Pediatrics. “Children and COVID-19: State-level data report.”

2. American Academy of Pediatrics. “Children and COVID-19 vaccination trends.”

3. Falk A et al. MMWR Morb Mortal Wkly Rep. 2021;70:136-40.

4. Hershow RB et al. MMWR Morb Mortal Wkly Rep 2021;70:442-8.

5. Zimmerman KO et al. Pediatrics. 2021 Jul;e2021052686. doi: 10.1542/peds.2021-052686.

6. American Academy of Pediatrics. “American Academy of Pediatrics updates recommendations for opening schools in fall 2021.”

7. Pediatric Infectious Diseases Society. “PIDS supports universal masking for students, school staff.”

8. Courtney Hayden. WHAS11. “Greater Clark County Schools return to class July 28.”

9. Dustin Vogt. WAVE3 News. “Greater Clark Country Schools to require masks amid 70 positive cases.”

Before the onslaught of COVID-19, researchers at the Fred Hutchinson Cancer Research Center in Seattle had another infectious disease worry: an “unprecedented” outbreak of measles.

“In 2019, we saw the most measles cases in any year since the 1990s,” said Sara Marquis, MPH, a clinical research coordinator at the center. The worry, she says, was that various oncology treatments, such as bone marrow transplantations and assorted biologics, “may leave cancer patients severely immunosuppressed” and thus vulnerable to infectious diseases.

Measles-related illness is typically not severe but can lead to pneumonia, deafness, and death, even in immunocompetent people, Ms. Marquis added.

So in 2019, a team at Fred Hutchinson initiated a study to get a sense of immunity to measles among patients with cancer.

They now report that of a group of 900-plus patients, 25% lacked protective antibodies for measles. That’s “significantly more” than the general population, in which about 8% of people lack these antibodies, Ms. Marquis said.

The study, published online in JAMA Network Open, also found that 38% lacked protection against the less-worrisome infectious disease of mumps, which is more than the 13% found in the general population.

“The scary thing about measles is that it is one of the most contagious diseases known,” Ms. Marquis told this news organization, adding that it is about twice as contagious as the COVID-19 Delta variant.

And it’s not just in the state of Washington. “We’re seeing it more and more in the community,” as various outbreaks continue to happen, she said.

“Deficits in protective antibodies underscore patients’ increased risk during outbreaks and emphasize the need for community-based efforts to increase herd immunity to protect this population,” the study authors conclude.

In short, administration of the measles-mumps-rubella (MMR) vaccine, introduced in 1963, must continue universally, they said

“We’ve had so many incredible advances in cancer treatment in recent years. … it would be devastating to see something like measles, which is a vaccine-preventable disease, come through and negate those efforts,” said study coauthor Elizabeth Krantz, MS, a biostatistician at Fred Hutchinson.

The health care teams and family caregivers of patients with cancer should also make sure they are vaccinated, said Ms. Marquis. However, some patients may not be able to get a measles booster vaccine because it is a live vaccine or because they cannot generate enough antibodies for it to be protective, she explained.
 

Three subgroups more likely to have deficits

The new study, which is one of the first to measure measles and mumps seroprevalence among patients with cancer in the modern era of cancer treatment, also identified three subgroups that more commonly had immunity deficits:  those aged 30-59 years; those with hematologic malignant neoplasms, and those who had received a hematopoietic cell transplant.

In the study, residual clinical plasma samples were obtained from 959 consecutive patients with cancer at Seattle Cancer Care Alliance and Fred Hutchinson in August 2019. These samples were tested for measles and mumps IgG by using a commercial enzyme-linked immunosorbent assay. In all, 60% of patients had a solid tumor and 40% had a blood cancer.

As noted above, the seroprevalence of measles antibodies was 0.75 and the seroprevalence of mumps antibodies was 0.62.

A study author explained why the study included mumps, a less threatening infection.

“We assessed mumps in this study out of interest to compare response in the MMR vaccine component – particularly as we could assess a potent vaccine (measles) versus one that has a weaker immunologic response (mumps). We remain worried about outbreaks of mumps as MMR vaccination rates drop across the U.S.,” wrote Steven Pergam, MD, MPH, infectious disease specialist at Fred Hutchinson, in an email.

Vaccination vigilance is one of the study’s messages. “We all need to do our part to make sure we are up to date with our vaccinations so we can make sure we protect those who are vulnerable,” said Ms. Krantz.

The study was funded by the National Cancer Institute and Seattle Cancer Care Alliance. Multiple study authors have ties to pharmaceutical companies.

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

Before the onslaught of COVID-19, researchers at the Fred Hutchinson Cancer Research Center in Seattle had another infectious disease worry: an “unprecedented” outbreak of measles.

“In 2019, we saw the most measles cases in any year since the 1990s,” said Sara Marquis, MPH, a clinical research coordinator at the center. The worry, she says, was that various oncology treatments, such as bone marrow transplantations and assorted biologics, “may leave cancer patients severely immunosuppressed” and thus vulnerable to infectious diseases.

Measles-related illness is typically not severe but can lead to pneumonia, deafness, and death, even in immunocompetent people, Ms. Marquis added.

So in 2019, a team at Fred Hutchinson initiated a study to get a sense of immunity to measles among patients with cancer.

They now report that of a group of 900-plus patients, 25% lacked protective antibodies for measles. That’s “significantly more” than the general population, in which about 8% of people lack these antibodies, Ms. Marquis said.

The study, published online in JAMA Network Open, also found that 38% lacked protection against the less-worrisome infectious disease of mumps, which is more than the 13% found in the general population.

“The scary thing about measles is that it is one of the most contagious diseases known,” Ms. Marquis told this news organization, adding that it is about twice as contagious as the COVID-19 Delta variant.

And it’s not just in the state of Washington. “We’re seeing it more and more in the community,” as various outbreaks continue to happen, she said.

“Deficits in protective antibodies underscore patients’ increased risk during outbreaks and emphasize the need for community-based efforts to increase herd immunity to protect this population,” the study authors conclude.

In short, administration of the measles-mumps-rubella (MMR) vaccine, introduced in 1963, must continue universally, they said

“We’ve had so many incredible advances in cancer treatment in recent years. … it would be devastating to see something like measles, which is a vaccine-preventable disease, come through and negate those efforts,” said study coauthor Elizabeth Krantz, MS, a biostatistician at Fred Hutchinson.

The health care teams and family caregivers of patients with cancer should also make sure they are vaccinated, said Ms. Marquis. However, some patients may not be able to get a measles booster vaccine because it is a live vaccine or because they cannot generate enough antibodies for it to be protective, she explained.
 

Three subgroups more likely to have deficits

The new study, which is one of the first to measure measles and mumps seroprevalence among patients with cancer in the modern era of cancer treatment, also identified three subgroups that more commonly had immunity deficits:  those aged 30-59 years; those with hematologic malignant neoplasms, and those who had received a hematopoietic cell transplant.

In the study, residual clinical plasma samples were obtained from 959 consecutive patients with cancer at Seattle Cancer Care Alliance and Fred Hutchinson in August 2019. These samples were tested for measles and mumps IgG by using a commercial enzyme-linked immunosorbent assay. In all, 60% of patients had a solid tumor and 40% had a blood cancer.

As noted above, the seroprevalence of measles antibodies was 0.75 and the seroprevalence of mumps antibodies was 0.62.

A study author explained why the study included mumps, a less threatening infection.

“We assessed mumps in this study out of interest to compare response in the MMR vaccine component – particularly as we could assess a potent vaccine (measles) versus one that has a weaker immunologic response (mumps). We remain worried about outbreaks of mumps as MMR vaccination rates drop across the U.S.,” wrote Steven Pergam, MD, MPH, infectious disease specialist at Fred Hutchinson, in an email.

Vaccination vigilance is one of the study’s messages. “We all need to do our part to make sure we are up to date with our vaccinations so we can make sure we protect those who are vulnerable,” said Ms. Krantz.

The study was funded by the National Cancer Institute and Seattle Cancer Care Alliance. Multiple study authors have ties to pharmaceutical companies.

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

Before the onslaught of COVID-19, researchers at the Fred Hutchinson Cancer Research Center in Seattle had another infectious disease worry: an “unprecedented” outbreak of measles.

“In 2019, we saw the most measles cases in any year since the 1990s,” said Sara Marquis, MPH, a clinical research coordinator at the center. The worry, she says, was that various oncology treatments, such as bone marrow transplantations and assorted biologics, “may leave cancer patients severely immunosuppressed” and thus vulnerable to infectious diseases.

Measles-related illness is typically not severe but can lead to pneumonia, deafness, and death, even in immunocompetent people, Ms. Marquis added.

So in 2019, a team at Fred Hutchinson initiated a study to get a sense of immunity to measles among patients with cancer.

They now report that of a group of 900-plus patients, 25% lacked protective antibodies for measles. That’s “significantly more” than the general population, in which about 8% of people lack these antibodies, Ms. Marquis said.

The study, published online in JAMA Network Open, also found that 38% lacked protection against the less-worrisome infectious disease of mumps, which is more than the 13% found in the general population.

“The scary thing about measles is that it is one of the most contagious diseases known,” Ms. Marquis told this news organization, adding that it is about twice as contagious as the COVID-19 Delta variant.

And it’s not just in the state of Washington. “We’re seeing it more and more in the community,” as various outbreaks continue to happen, she said.

“Deficits in protective antibodies underscore patients’ increased risk during outbreaks and emphasize the need for community-based efforts to increase herd immunity to protect this population,” the study authors conclude.

In short, administration of the measles-mumps-rubella (MMR) vaccine, introduced in 1963, must continue universally, they said

“We’ve had so many incredible advances in cancer treatment in recent years. … it would be devastating to see something like measles, which is a vaccine-preventable disease, come through and negate those efforts,” said study coauthor Elizabeth Krantz, MS, a biostatistician at Fred Hutchinson.

The health care teams and family caregivers of patients with cancer should also make sure they are vaccinated, said Ms. Marquis. However, some patients may not be able to get a measles booster vaccine because it is a live vaccine or because they cannot generate enough antibodies for it to be protective, she explained.
 

Three subgroups more likely to have deficits

The new study, which is one of the first to measure measles and mumps seroprevalence among patients with cancer in the modern era of cancer treatment, also identified three subgroups that more commonly had immunity deficits:  those aged 30-59 years; those with hematologic malignant neoplasms, and those who had received a hematopoietic cell transplant.

In the study, residual clinical plasma samples were obtained from 959 consecutive patients with cancer at Seattle Cancer Care Alliance and Fred Hutchinson in August 2019. These samples were tested for measles and mumps IgG by using a commercial enzyme-linked immunosorbent assay. In all, 60% of patients had a solid tumor and 40% had a blood cancer.

As noted above, the seroprevalence of measles antibodies was 0.75 and the seroprevalence of mumps antibodies was 0.62.

A study author explained why the study included mumps, a less threatening infection.

“We assessed mumps in this study out of interest to compare response in the MMR vaccine component – particularly as we could assess a potent vaccine (measles) versus one that has a weaker immunologic response (mumps). We remain worried about outbreaks of mumps as MMR vaccination rates drop across the U.S.,” wrote Steven Pergam, MD, MPH, infectious disease specialist at Fred Hutchinson, in an email.

Vaccination vigilance is one of the study’s messages. “We all need to do our part to make sure we are up to date with our vaccinations so we can make sure we protect those who are vulnerable,” said Ms. Krantz.

The study was funded by the National Cancer Institute and Seattle Cancer Care Alliance. Multiple study authors have ties to pharmaceutical companies.

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

The Centers for Disease Control and Prevention and Food and Drug Administration have announced an outbreak of at least 15 Burkholderia cepacia infections associated with contaminated ultrasound gel used to guide invasive procedures as well as an unrelated outbreak of Burkholderia pseudomallei that caused two deaths.

The procedures involved in the B. cepacia outbreak included placement of both central and peripheral intravenous catheters and paracentesis (removal of peritoneal fluid from the abdominal cavity). Cases have occurred in several states.

Further testing has shown the presence of Burkholderia stabilis, a member of B. cepacia complex (Bcc), in four lots of unopened bottles of MediChoice M500812 ultrasound gel. Eco-Med Pharmaceuticals of Etobicoke, Ont., the parent manufacturer, has issued a recall of MediChoice M500812 or Eco-Gel 200 with the following lot numbers: B029, B030, B031, B032, B040, B041, B048, B055. A similar outbreak occurred in Canada.

Some of these cases resulted in bloodstream infections. Further details are not yet available. Bcc infections have ranged from asymptomatic to life-threatening pneumonias, particularly in patients with cystic fibrosis. Other risk factors include immunosuppression, mechanical ventilation, and the use of other invasive venous or urinary catheters.

Kiran M. Perkins, MD, MPH, outbreak lead with the CDC’s Prevention Research Branch, said in an interview via email that automated systems such as Vitek might have trouble identifying the organism as “the system may only reveal the microbial species at the genus level but not at the species level, and/or it may have difficulty distinguishing between members of closely related group members.”

In the CDC’s experience, “most facilities do not conduct further species identification.” The agency added that it cannot tell if there has been any increase in cases associated with COVID-19, as they are not notifiable diseases and the “CDC does not systematically collect information on B. cepacia complex infections.”

Rodney Rohde, PhD, professor of clinical laboratory science and chair of the clinical laboratory science program, Texas State University, San Marcos, told this news organization via email that Burkholderia’s “detection in the manufacturing process is difficult, and product recalls are frequent.” He added, “A recent review by the Food and Drug Administration in the U.S. found that almost 40% of contamination reports in both sterile and nonsterile pharmaceutical products were caused by Bcc bacteria.” Another problem is that they often create biofilms, so “they are tenacious environmental colonizers of medical equipment and surfaces in general.”

There have been many other outbreaks as a result to B. cepacia complex. Because it is often in the water supply used in pharmaceutical manufacturing and is resistant to preservatives, the FDA cautions that it poses a risk of contamination in all nonsterile, water-based drug products.

Recalls have included contaminated antiseptics, such as povidone iodine, benzalkonium chloride, and chlorhexidine gluconate. Contamination in manufacturing may not be uniform, and only some samples may be affected. Antiseptic mouthwashes have also been affected. So have nonbacterial soaps and docusate (a stool softener) solutions, and various personal care products, including nasal sprays, lotions, simethicone gas relief drops (Mylicon), and baby wipes.

Although Bcc are considered “objectionable organisms,” there have been no strong or consistent standards for their detection from the U.S. Pharmacopeia, and some manufacturers reportedly underestimate the consequences of contamination. The FDA issued a guidance to manufacturers in 2017 on quality assurance and cleaning procedures. This is particularly important since preservatives are ineffective against Bcc, and sterility has to be insured at each step of production.

Burkholderia isolates are generally resistant to commonly used antibiotics. Treatment might therefore include a combination of two drugs (to try to limit the emergence of more resistance) such as ceftazidime, piperacillin, meropenem with trimethoprim-sulfamethoxazole, or a beta-lactam plus aminoglycoside.

Interestingly, an outbreak of Burkholderia pseudomallei was just reported by the CDC as well. This is a related gram-negative bacillus which is quite uncommon in the United States. It causes melioidosis, usually a tropical infection, which presents with nonspecific symptoms or serious pneumonia, abscesses, or bloodstream infections.

Four cases have been identified this year in Georgia, Kansas, Minnesota, and Texas, two of them fatal. It is usually acquired from soil or water. By genomic analysis, the four cases are felt to be related, but no common source of exposure has been identified. They also appear to be closely related to South Asian strains, although none of the patients had traveled internationally. Prolonged antibiotic therapy with ceftazidime or meropenem, followed by 3-6 months of trimethoprim-sulfamethoxazole, is often required.

In his email, Dr. Rohde stated, “Melioidosis causes cough, chest pain, high fever, headache or unexplained weight loss, but it may take 2-3 weeks for symptoms of melioidosis to appear after a person’s initial exposure to the bacteria. So, one could see how this might be overlooked as COVID per symptoms and per the limitations of laboratory identification.”

It’s essential for clinicians to recognize that automated microbiology identification systems can misidentify B. pseudomallei as B. cepacia and to ask the lab for more specialized molecular diagnostics, particularly when relatively unusual organisms are isolated.

Candice Hoffmann, a public affairs specialist at the CDC, told this news organization that “clinicians should consider melioidosis as a differential diagnosis in both adult and pediatric patients who are suspected to have a bacterial infection (pneumonia, sepsis, meningitis, wound) and are not responding to antibacterial treatment, even if they have not traveled outside of the continental United States.”

Dr. Rohde has disclosed no relevant financial relationships.

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

The Centers for Disease Control and Prevention and Food and Drug Administration have announced an outbreak of at least 15 Burkholderia cepacia infections associated with contaminated ultrasound gel used to guide invasive procedures as well as an unrelated outbreak of Burkholderia pseudomallei that caused two deaths.

The procedures involved in the B. cepacia outbreak included placement of both central and peripheral intravenous catheters and paracentesis (removal of peritoneal fluid from the abdominal cavity). Cases have occurred in several states.

Further testing has shown the presence of Burkholderia stabilis, a member of B. cepacia complex (Bcc), in four lots of unopened bottles of MediChoice M500812 ultrasound gel. Eco-Med Pharmaceuticals of Etobicoke, Ont., the parent manufacturer, has issued a recall of MediChoice M500812 or Eco-Gel 200 with the following lot numbers: B029, B030, B031, B032, B040, B041, B048, B055. A similar outbreak occurred in Canada.

Some of these cases resulted in bloodstream infections. Further details are not yet available. Bcc infections have ranged from asymptomatic to life-threatening pneumonias, particularly in patients with cystic fibrosis. Other risk factors include immunosuppression, mechanical ventilation, and the use of other invasive venous or urinary catheters.

Kiran M. Perkins, MD, MPH, outbreak lead with the CDC’s Prevention Research Branch, said in an interview via email that automated systems such as Vitek might have trouble identifying the organism as “the system may only reveal the microbial species at the genus level but not at the species level, and/or it may have difficulty distinguishing between members of closely related group members.”

In the CDC’s experience, “most facilities do not conduct further species identification.” The agency added that it cannot tell if there has been any increase in cases associated with COVID-19, as they are not notifiable diseases and the “CDC does not systematically collect information on B. cepacia complex infections.”

Rodney Rohde, PhD, professor of clinical laboratory science and chair of the clinical laboratory science program, Texas State University, San Marcos, told this news organization via email that Burkholderia’s “detection in the manufacturing process is difficult, and product recalls are frequent.” He added, “A recent review by the Food and Drug Administration in the U.S. found that almost 40% of contamination reports in both sterile and nonsterile pharmaceutical products were caused by Bcc bacteria.” Another problem is that they often create biofilms, so “they are tenacious environmental colonizers of medical equipment and surfaces in general.”

There have been many other outbreaks as a result to B. cepacia complex. Because it is often in the water supply used in pharmaceutical manufacturing and is resistant to preservatives, the FDA cautions that it poses a risk of contamination in all nonsterile, water-based drug products.

Recalls have included contaminated antiseptics, such as povidone iodine, benzalkonium chloride, and chlorhexidine gluconate. Contamination in manufacturing may not be uniform, and only some samples may be affected. Antiseptic mouthwashes have also been affected. So have nonbacterial soaps and docusate (a stool softener) solutions, and various personal care products, including nasal sprays, lotions, simethicone gas relief drops (Mylicon), and baby wipes.

Although Bcc are considered “objectionable organisms,” there have been no strong or consistent standards for their detection from the U.S. Pharmacopeia, and some manufacturers reportedly underestimate the consequences of contamination. The FDA issued a guidance to manufacturers in 2017 on quality assurance and cleaning procedures. This is particularly important since preservatives are ineffective against Bcc, and sterility has to be insured at each step of production.

Burkholderia isolates are generally resistant to commonly used antibiotics. Treatment might therefore include a combination of two drugs (to try to limit the emergence of more resistance) such as ceftazidime, piperacillin, meropenem with trimethoprim-sulfamethoxazole, or a beta-lactam plus aminoglycoside.

Interestingly, an outbreak of Burkholderia pseudomallei was just reported by the CDC as well. This is a related gram-negative bacillus which is quite uncommon in the United States. It causes melioidosis, usually a tropical infection, which presents with nonspecific symptoms or serious pneumonia, abscesses, or bloodstream infections.

Four cases have been identified this year in Georgia, Kansas, Minnesota, and Texas, two of them fatal. It is usually acquired from soil or water. By genomic analysis, the four cases are felt to be related, but no common source of exposure has been identified. They also appear to be closely related to South Asian strains, although none of the patients had traveled internationally. Prolonged antibiotic therapy with ceftazidime or meropenem, followed by 3-6 months of trimethoprim-sulfamethoxazole, is often required.

In his email, Dr. Rohde stated, “Melioidosis causes cough, chest pain, high fever, headache or unexplained weight loss, but it may take 2-3 weeks for symptoms of melioidosis to appear after a person’s initial exposure to the bacteria. So, one could see how this might be overlooked as COVID per symptoms and per the limitations of laboratory identification.”

It’s essential for clinicians to recognize that automated microbiology identification systems can misidentify B. pseudomallei as B. cepacia and to ask the lab for more specialized molecular diagnostics, particularly when relatively unusual organisms are isolated.

Candice Hoffmann, a public affairs specialist at the CDC, told this news organization that “clinicians should consider melioidosis as a differential diagnosis in both adult and pediatric patients who are suspected to have a bacterial infection (pneumonia, sepsis, meningitis, wound) and are not responding to antibacterial treatment, even if they have not traveled outside of the continental United States.”

Dr. Rohde has disclosed no relevant financial relationships.

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

The Centers for Disease Control and Prevention and Food and Drug Administration have announced an outbreak of at least 15 Burkholderia cepacia infections associated with contaminated ultrasound gel used to guide invasive procedures as well as an unrelated outbreak of Burkholderia pseudomallei that caused two deaths.

The procedures involved in the B. cepacia outbreak included placement of both central and peripheral intravenous catheters and paracentesis (removal of peritoneal fluid from the abdominal cavity). Cases have occurred in several states.

Further testing has shown the presence of Burkholderia stabilis, a member of B. cepacia complex (Bcc), in four lots of unopened bottles of MediChoice M500812 ultrasound gel. Eco-Med Pharmaceuticals of Etobicoke, Ont., the parent manufacturer, has issued a recall of MediChoice M500812 or Eco-Gel 200 with the following lot numbers: B029, B030, B031, B032, B040, B041, B048, B055. A similar outbreak occurred in Canada.

Some of these cases resulted in bloodstream infections. Further details are not yet available. Bcc infections have ranged from asymptomatic to life-threatening pneumonias, particularly in patients with cystic fibrosis. Other risk factors include immunosuppression, mechanical ventilation, and the use of other invasive venous or urinary catheters.

Kiran M. Perkins, MD, MPH, outbreak lead with the CDC’s Prevention Research Branch, said in an interview via email that automated systems such as Vitek might have trouble identifying the organism as “the system may only reveal the microbial species at the genus level but not at the species level, and/or it may have difficulty distinguishing between members of closely related group members.”

In the CDC’s experience, “most facilities do not conduct further species identification.” The agency added that it cannot tell if there has been any increase in cases associated with COVID-19, as they are not notifiable diseases and the “CDC does not systematically collect information on B. cepacia complex infections.”

Rodney Rohde, PhD, professor of clinical laboratory science and chair of the clinical laboratory science program, Texas State University, San Marcos, told this news organization via email that Burkholderia’s “detection in the manufacturing process is difficult, and product recalls are frequent.” He added, “A recent review by the Food and Drug Administration in the U.S. found that almost 40% of contamination reports in both sterile and nonsterile pharmaceutical products were caused by Bcc bacteria.” Another problem is that they often create biofilms, so “they are tenacious environmental colonizers of medical equipment and surfaces in general.”

There have been many other outbreaks as a result to B. cepacia complex. Because it is often in the water supply used in pharmaceutical manufacturing and is resistant to preservatives, the FDA cautions that it poses a risk of contamination in all nonsterile, water-based drug products.

Recalls have included contaminated antiseptics, such as povidone iodine, benzalkonium chloride, and chlorhexidine gluconate. Contamination in manufacturing may not be uniform, and only some samples may be affected. Antiseptic mouthwashes have also been affected. So have nonbacterial soaps and docusate (a stool softener) solutions, and various personal care products, including nasal sprays, lotions, simethicone gas relief drops (Mylicon), and baby wipes.

Although Bcc are considered “objectionable organisms,” there have been no strong or consistent standards for their detection from the U.S. Pharmacopeia, and some manufacturers reportedly underestimate the consequences of contamination. The FDA issued a guidance to manufacturers in 2017 on quality assurance and cleaning procedures. This is particularly important since preservatives are ineffective against Bcc, and sterility has to be insured at each step of production.

Burkholderia isolates are generally resistant to commonly used antibiotics. Treatment might therefore include a combination of two drugs (to try to limit the emergence of more resistance) such as ceftazidime, piperacillin, meropenem with trimethoprim-sulfamethoxazole, or a beta-lactam plus aminoglycoside.

Interestingly, an outbreak of Burkholderia pseudomallei was just reported by the CDC as well. This is a related gram-negative bacillus which is quite uncommon in the United States. It causes melioidosis, usually a tropical infection, which presents with nonspecific symptoms or serious pneumonia, abscesses, or bloodstream infections.

Four cases have been identified this year in Georgia, Kansas, Minnesota, and Texas, two of them fatal. It is usually acquired from soil or water. By genomic analysis, the four cases are felt to be related, but no common source of exposure has been identified. They also appear to be closely related to South Asian strains, although none of the patients had traveled internationally. Prolonged antibiotic therapy with ceftazidime or meropenem, followed by 3-6 months of trimethoprim-sulfamethoxazole, is often required.

In his email, Dr. Rohde stated, “Melioidosis causes cough, chest pain, high fever, headache or unexplained weight loss, but it may take 2-3 weeks for symptoms of melioidosis to appear after a person’s initial exposure to the bacteria. So, one could see how this might be overlooked as COVID per symptoms and per the limitations of laboratory identification.”

It’s essential for clinicians to recognize that automated microbiology identification systems can misidentify B. pseudomallei as B. cepacia and to ask the lab for more specialized molecular diagnostics, particularly when relatively unusual organisms are isolated.

Candice Hoffmann, a public affairs specialist at the CDC, told this news organization that “clinicians should consider melioidosis as a differential diagnosis in both adult and pediatric patients who are suspected to have a bacterial infection (pneumonia, sepsis, meningitis, wound) and are not responding to antibacterial treatment, even if they have not traveled outside of the continental United States.”

Dr. Rohde has disclosed no relevant financial relationships.

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

The breast milk of women who had received Pfizer’s COVID-19 vaccine contained specific antibodies against the infectious disease, new research found.

“The COVID-19 pandemic has raised questions among individuals who are breastfeeding, both because of the possibility of viral transmission to infants during breastfeeding and, more recently, of the potential risks and benefits of vaccination in this specific population,” researchers wrote.

In August, the American College of Obstetricians and Gynecologists and the Society for Maternal-Fetal Medicine, and most recently, the Centers for Disease Control and Prevention, recommended that pregnant people receive the COVID-19 vaccine.

The study, published Aug. 11 in JAMA Network Open, adds to a growing collection of research that has found COVID-19 antibodies in the breast milk of women who were vaccinated against or have been infected with the illness.

Study author Erika Esteve-Palau, MD, PhD, and her colleagues collected blood and milk samples from 33 people who were on average 37 years old and who were on average 17.5 months post partum to examine the correlation of the levels of immunoglobulin G antibodies against the spike protein (S1 subunit) and against the nucleocapsid (NC) of SARS-CoV-2.

Blood and milk samples were taken from each study participant at three time points – 2 weeks after receiving the first dose of the vaccine, 2 weeks after receiving the second dose, and 4 weeks after the second dose. No participants had confirmed SARS-CoV-2 infection prior to vaccination or during the study period.

Researchers found that, after the second dose of the vaccine, IgG(S1) levels in breast milk increased and were positively associated with corresponding levels in the blood samples. The median range of IgG(S1) levels for serum-milk pairs at each time point were 519 to 1 arbitrary units (AU) per mL 2 weeks after receiving the first dose of the vaccine, 8,644 to 78 AU/mL 2 weeks after receiving the second dose, and 12,478 to 50.4 AU/mL 4 weeks after receiving the second dose.

Lisette D. Tanner, MD, MPH, FACOG, who was not involved in the study, said she was not surprised by the findings as previous studies have shown the passage of antibodies in breast milk in vaccinated women. One 2021 study published in JAMA found SARS-CoV-2–specific IgA and IgG antibodies in breast milk for 6 weeks after vaccination. IgA secretion was evident as early as 2 weeks after vaccination followed by a spike in IgG after 4 weeks (a week after the second vaccine). Meanwhile, another 2021 study published in mBio found that breast milk produced by parents with COVID-19 is a source of SARS-CoV-2 IgA and IgG antibodies and can neutralize COVID-19 activity.

“While the data from this and other studies is promising in regards to the passage of antibodies, it is currently unclear what the long-term effects for children will be,” said Dr. Tanner of the department of gynecology and obstetrics at Emory University, Atlanta. “It is not yet known what level of antibodies is necessary to convey protection to either neonates or children. This is an active area of investigation at multiple institutions.”

Dr. Tanner said she wished the study “evaluated neonatal cord blood or serum levels to better understand the immune response mounted by the children of women who received vaccination.”

Researchers of the current study said larger prospective studies are needed to confirm the safety of SARS-CoV-2 vaccination in individuals who are breastfeeding and further assess the association of vaccination with infants’ health and SARS-CoV-2–specific immunity.

Dr. Palau and Dr. Tanner had no relevant financial disclosures.

The breast milk of women who had received Pfizer’s COVID-19 vaccine contained specific antibodies against the infectious disease, new research found.

“The COVID-19 pandemic has raised questions among individuals who are breastfeeding, both because of the possibility of viral transmission to infants during breastfeeding and, more recently, of the potential risks and benefits of vaccination in this specific population,” researchers wrote.

In August, the American College of Obstetricians and Gynecologists and the Society for Maternal-Fetal Medicine, and most recently, the Centers for Disease Control and Prevention, recommended that pregnant people receive the COVID-19 vaccine.

The study, published Aug. 11 in JAMA Network Open, adds to a growing collection of research that has found COVID-19 antibodies in the breast milk of women who were vaccinated against or have been infected with the illness.

Study author Erika Esteve-Palau, MD, PhD, and her colleagues collected blood and milk samples from 33 people who were on average 37 years old and who were on average 17.5 months post partum to examine the correlation of the levels of immunoglobulin G antibodies against the spike protein (S1 subunit) and against the nucleocapsid (NC) of SARS-CoV-2.

Blood and milk samples were taken from each study participant at three time points – 2 weeks after receiving the first dose of the vaccine, 2 weeks after receiving the second dose, and 4 weeks after the second dose. No participants had confirmed SARS-CoV-2 infection prior to vaccination or during the study period.

Researchers found that, after the second dose of the vaccine, IgG(S1) levels in breast milk increased and were positively associated with corresponding levels in the blood samples. The median range of IgG(S1) levels for serum-milk pairs at each time point were 519 to 1 arbitrary units (AU) per mL 2 weeks after receiving the first dose of the vaccine, 8,644 to 78 AU/mL 2 weeks after receiving the second dose, and 12,478 to 50.4 AU/mL 4 weeks after receiving the second dose.

Lisette D. Tanner, MD, MPH, FACOG, who was not involved in the study, said she was not surprised by the findings as previous studies have shown the passage of antibodies in breast milk in vaccinated women. One 2021 study published in JAMA found SARS-CoV-2–specific IgA and IgG antibodies in breast milk for 6 weeks after vaccination. IgA secretion was evident as early as 2 weeks after vaccination followed by a spike in IgG after 4 weeks (a week after the second vaccine). Meanwhile, another 2021 study published in mBio found that breast milk produced by parents with COVID-19 is a source of SARS-CoV-2 IgA and IgG antibodies and can neutralize COVID-19 activity.

“While the data from this and other studies is promising in regards to the passage of antibodies, it is currently unclear what the long-term effects for children will be,” said Dr. Tanner of the department of gynecology and obstetrics at Emory University, Atlanta. “It is not yet known what level of antibodies is necessary to convey protection to either neonates or children. This is an active area of investigation at multiple institutions.”

Dr. Tanner said she wished the study “evaluated neonatal cord blood or serum levels to better understand the immune response mounted by the children of women who received vaccination.”

Researchers of the current study said larger prospective studies are needed to confirm the safety of SARS-CoV-2 vaccination in individuals who are breastfeeding and further assess the association of vaccination with infants’ health and SARS-CoV-2–specific immunity.

Dr. Palau and Dr. Tanner had no relevant financial disclosures.

The breast milk of women who had received Pfizer’s COVID-19 vaccine contained specific antibodies against the infectious disease, new research found.

“The COVID-19 pandemic has raised questions among individuals who are breastfeeding, both because of the possibility of viral transmission to infants during breastfeeding and, more recently, of the potential risks and benefits of vaccination in this specific population,” researchers wrote.

In August, the American College of Obstetricians and Gynecologists and the Society for Maternal-Fetal Medicine, and most recently, the Centers for Disease Control and Prevention, recommended that pregnant people receive the COVID-19 vaccine.

The study, published Aug. 11 in JAMA Network Open, adds to a growing collection of research that has found COVID-19 antibodies in the breast milk of women who were vaccinated against or have been infected with the illness.

Study author Erika Esteve-Palau, MD, PhD, and her colleagues collected blood and milk samples from 33 people who were on average 37 years old and who were on average 17.5 months post partum to examine the correlation of the levels of immunoglobulin G antibodies against the spike protein (S1 subunit) and against the nucleocapsid (NC) of SARS-CoV-2.

Blood and milk samples were taken from each study participant at three time points – 2 weeks after receiving the first dose of the vaccine, 2 weeks after receiving the second dose, and 4 weeks after the second dose. No participants had confirmed SARS-CoV-2 infection prior to vaccination or during the study period.

Researchers found that, after the second dose of the vaccine, IgG(S1) levels in breast milk increased and were positively associated with corresponding levels in the blood samples. The median range of IgG(S1) levels for serum-milk pairs at each time point were 519 to 1 arbitrary units (AU) per mL 2 weeks after receiving the first dose of the vaccine, 8,644 to 78 AU/mL 2 weeks after receiving the second dose, and 12,478 to 50.4 AU/mL 4 weeks after receiving the second dose.

Lisette D. Tanner, MD, MPH, FACOG, who was not involved in the study, said she was not surprised by the findings as previous studies have shown the passage of antibodies in breast milk in vaccinated women. One 2021 study published in JAMA found SARS-CoV-2–specific IgA and IgG antibodies in breast milk for 6 weeks after vaccination. IgA secretion was evident as early as 2 weeks after vaccination followed by a spike in IgG after 4 weeks (a week after the second vaccine). Meanwhile, another 2021 study published in mBio found that breast milk produced by parents with COVID-19 is a source of SARS-CoV-2 IgA and IgG antibodies and can neutralize COVID-19 activity.

“While the data from this and other studies is promising in regards to the passage of antibodies, it is currently unclear what the long-term effects for children will be,” said Dr. Tanner of the department of gynecology and obstetrics at Emory University, Atlanta. “It is not yet known what level of antibodies is necessary to convey protection to either neonates or children. This is an active area of investigation at multiple institutions.”

Dr. Tanner said she wished the study “evaluated neonatal cord blood or serum levels to better understand the immune response mounted by the children of women who received vaccination.”

Researchers of the current study said larger prospective studies are needed to confirm the safety of SARS-CoV-2 vaccination in individuals who are breastfeeding and further assess the association of vaccination with infants’ health and SARS-CoV-2–specific immunity.

Dr. Palau and Dr. Tanner had no relevant financial disclosures.

Most pediatric patients diagnosed with an inflammatory or autoimmune disorder lacked evidence of an immune response to the hepatitis B vaccine, results from a single-center retrospective study showed.

“Hepatitis B is a common viral infection with 2 billion people worldwide having evidence of prior or current infection, and it can present as an acute or chronic infection,” or with chronic sequelae, including cirrhosis and hepatocellular carcinoma, Alexandra Ritter said during the annual meeting of the Society for Pediatric Dermatology. A three-dose vaccination series is recommended beginning at birth, and in 2016, the Centers for Disease Control and Prevention reported that 90.5% of U.S. children aged 19-35 months had completed the series.

While the vaccine series provides protection in healthy individuals more than 95% of the time, a decreased response has been noted in specific pediatric populations, including those with inflammatory and autoimmune diseases. “This is important to note and investigate further because a decreased vaccine response increases the risk for this high-risk population, and the use of boosters is currently debated,” said Ms. Ritter, who is a fourth-year student at the Medical University of South Carolina, Charleston.

To determine the percent of pediatric patients with inflammatory or autoimmune disease who lack evidence of immunity following the hepatitis B vaccine series, Ms. Ritter and colleagues Abigail Truitt and pediatric dermatologist Lara Wine Lee, MD, PhD, of MUSC, retrospectively reviewed the charts of 160 patients between the ages of 6 months and 21 years, who were diagnosed with an autoimmune or autoinflammatory disease, or inflammatory bowel disease (IBD), and had documented evidence of vaccination and serologic testing prior to the start of immunosuppressive therapy.

Of the 160 patients, 100 (63%) had IBD, 34 (21%) had an autoimmune disease, 26 (16%) had an autoinflammatory disease, 89 (56%) were female, and their mean age was 15 years.

The researchers observed variation in the testing ordered between the three patient groups. Specifically, 88.2% of autoimmune patients had hepatitis B surface antigen (HBsAg) testing, compared with 96.15% of patients with an autoinflammatory disease and 67% of patients with IBD, while 76.47% of patients with an autoimmune disease had hepatitis B core antibody (anti-HBc) testing, compared with 88.46% of patients with an autoinflammatory disease and 31% of patients with IBD.

In addition, 82.35% of patients with an autoimmune disease had HBsAg testing, compared with 100% of patients with an autoinflammatory disease and 94% of patients with IBD.

Of the 148 patients who had HBsAg testing ordered and completed prior to starting an immunosuppressive drug, there was no statistically significant difference in the percent of patients showing evidence of an immune response to the hepatitis B vaccine (32.14% among patients with an autoimmune disease, 34.62% among patients with an autoinflammatory disease, and 31.91% among patients with IBD). Combined, 67.57% of tested negative for the hepatitis B surface antibody.

“Our study showed that the majority of these patients did not show serologic evidence of immunity despite being fully vaccinated,” Ms. Ritter said. “There was also variation in the testing ordered and a more standardized approach is needed in this high-risk population.” She acknowledged certain limitations of the study, including its retrospective design and lack of a control group.

“This brings us to our next question of whether this indicates a failure of the vaccine, or the way immunity is tested,” she continued. “The CDC and the European Consensus Group on Hepatitis B Immunity recommend a cutoff of greater than 10 mIU/mL. Those that achieve immunity are protected for up to 20 years due to immune memory, even if their antibody levels later drop. There have been rare cases of immunocompetent individuals having evidence of transient asymptomatic infections when antibody levels drop. The chronic disease has only been documented in infants born to positive mothers. In hemodialysis patients, however, clinically significant infections have been documented when antibody levels drop.”

The CDC only recommends postvaccination testing to infants born to positive mothers, health care workers at high risk, hemodialysis patients, people with HIV and other immunocompromised people, and needle-sharing partners of chronically infected people. This is completed 1-2 months following the third vaccine dose, and those with antibody levels less than 10 mIU/mL should be revaccinated. “As some groups do not respond to the vaccine series, alternative dosing and the intradermal vaccine have been studied and shown to be effective in certain groups,” she said.

When it comes to monitoring immunocompromised individuals and giving booster shots, however, there are conflicting recommendations. The CDC recommends yearly testing and booster shots when levels drop below 10 mIU/mL only in hemodialysis patients, while the European Consensus Group recommends testing every 6-12 months for immunocompromised individuals and boosters when their levels drop below 10 mIU/mL.

“The CDC has not yet determined if other immunocompromised individuals should receive a booster, with more research required, but studies have shown it to be effective,” Ms. Ritter said. In a similar study looking at evidence of immunity in children with connective tissue disease who were on immunosuppressive treatment, 50% had no evidence of protective antibodies, compared with 96% in the control group. “In that study, a booster shot was given, and protective antibody concentrations were found at follow-up,” she said.

The researchers reported having no financial disclosures.

[email protected]

Most pediatric patients diagnosed with an inflammatory or autoimmune disorder lacked evidence of an immune response to the hepatitis B vaccine, results from a single-center retrospective study showed.

“Hepatitis B is a common viral infection with 2 billion people worldwide having evidence of prior or current infection, and it can present as an acute or chronic infection,” or with chronic sequelae, including cirrhosis and hepatocellular carcinoma, Alexandra Ritter said during the annual meeting of the Society for Pediatric Dermatology. A three-dose vaccination series is recommended beginning at birth, and in 2016, the Centers for Disease Control and Prevention reported that 90.5% of U.S. children aged 19-35 months had completed the series.

While the vaccine series provides protection in healthy individuals more than 95% of the time, a decreased response has been noted in specific pediatric populations, including those with inflammatory and autoimmune diseases. “This is important to note and investigate further because a decreased vaccine response increases the risk for this high-risk population, and the use of boosters is currently debated,” said Ms. Ritter, who is a fourth-year student at the Medical University of South Carolina, Charleston.

To determine the percent of pediatric patients with inflammatory or autoimmune disease who lack evidence of immunity following the hepatitis B vaccine series, Ms. Ritter and colleagues Abigail Truitt and pediatric dermatologist Lara Wine Lee, MD, PhD, of MUSC, retrospectively reviewed the charts of 160 patients between the ages of 6 months and 21 years, who were diagnosed with an autoimmune or autoinflammatory disease, or inflammatory bowel disease (IBD), and had documented evidence of vaccination and serologic testing prior to the start of immunosuppressive therapy.

Of the 160 patients, 100 (63%) had IBD, 34 (21%) had an autoimmune disease, 26 (16%) had an autoinflammatory disease, 89 (56%) were female, and their mean age was 15 years.

The researchers observed variation in the testing ordered between the three patient groups. Specifically, 88.2% of autoimmune patients had hepatitis B surface antigen (HBsAg) testing, compared with 96.15% of patients with an autoinflammatory disease and 67% of patients with IBD, while 76.47% of patients with an autoimmune disease had hepatitis B core antibody (anti-HBc) testing, compared with 88.46% of patients with an autoinflammatory disease and 31% of patients with IBD.

In addition, 82.35% of patients with an autoimmune disease had HBsAg testing, compared with 100% of patients with an autoinflammatory disease and 94% of patients with IBD.

Of the 148 patients who had HBsAg testing ordered and completed prior to starting an immunosuppressive drug, there was no statistically significant difference in the percent of patients showing evidence of an immune response to the hepatitis B vaccine (32.14% among patients with an autoimmune disease, 34.62% among patients with an autoinflammatory disease, and 31.91% among patients with IBD). Combined, 67.57% of tested negative for the hepatitis B surface antibody.

“Our study showed that the majority of these patients did not show serologic evidence of immunity despite being fully vaccinated,” Ms. Ritter said. “There was also variation in the testing ordered and a more standardized approach is needed in this high-risk population.” She acknowledged certain limitations of the study, including its retrospective design and lack of a control group.

“This brings us to our next question of whether this indicates a failure of the vaccine, or the way immunity is tested,” she continued. “The CDC and the European Consensus Group on Hepatitis B Immunity recommend a cutoff of greater than 10 mIU/mL. Those that achieve immunity are protected for up to 20 years due to immune memory, even if their antibody levels later drop. There have been rare cases of immunocompetent individuals having evidence of transient asymptomatic infections when antibody levels drop. The chronic disease has only been documented in infants born to positive mothers. In hemodialysis patients, however, clinically significant infections have been documented when antibody levels drop.”

The CDC only recommends postvaccination testing to infants born to positive mothers, health care workers at high risk, hemodialysis patients, people with HIV and other immunocompromised people, and needle-sharing partners of chronically infected people. This is completed 1-2 months following the third vaccine dose, and those with antibody levels less than 10 mIU/mL should be revaccinated. “As some groups do not respond to the vaccine series, alternative dosing and the intradermal vaccine have been studied and shown to be effective in certain groups,” she said.

When it comes to monitoring immunocompromised individuals and giving booster shots, however, there are conflicting recommendations. The CDC recommends yearly testing and booster shots when levels drop below 10 mIU/mL only in hemodialysis patients, while the European Consensus Group recommends testing every 6-12 months for immunocompromised individuals and boosters when their levels drop below 10 mIU/mL.

“The CDC has not yet determined if other immunocompromised individuals should receive a booster, with more research required, but studies have shown it to be effective,” Ms. Ritter said. In a similar study looking at evidence of immunity in children with connective tissue disease who were on immunosuppressive treatment, 50% had no evidence of protective antibodies, compared with 96% in the control group. “In that study, a booster shot was given, and protective antibody concentrations were found at follow-up,” she said.

The researchers reported having no financial disclosures.

[email protected]

Most pediatric patients diagnosed with an inflammatory or autoimmune disorder lacked evidence of an immune response to the hepatitis B vaccine, results from a single-center retrospective study showed.

“Hepatitis B is a common viral infection with 2 billion people worldwide having evidence of prior or current infection, and it can present as an acute or chronic infection,” or with chronic sequelae, including cirrhosis and hepatocellular carcinoma, Alexandra Ritter said during the annual meeting of the Society for Pediatric Dermatology. A three-dose vaccination series is recommended beginning at birth, and in 2016, the Centers for Disease Control and Prevention reported that 90.5% of U.S. children aged 19-35 months had completed the series.

While the vaccine series provides protection in healthy individuals more than 95% of the time, a decreased response has been noted in specific pediatric populations, including those with inflammatory and autoimmune diseases. “This is important to note and investigate further because a decreased vaccine response increases the risk for this high-risk population, and the use of boosters is currently debated,” said Ms. Ritter, who is a fourth-year student at the Medical University of South Carolina, Charleston.

To determine the percent of pediatric patients with inflammatory or autoimmune disease who lack evidence of immunity following the hepatitis B vaccine series, Ms. Ritter and colleagues Abigail Truitt and pediatric dermatologist Lara Wine Lee, MD, PhD, of MUSC, retrospectively reviewed the charts of 160 patients between the ages of 6 months and 21 years, who were diagnosed with an autoimmune or autoinflammatory disease, or inflammatory bowel disease (IBD), and had documented evidence of vaccination and serologic testing prior to the start of immunosuppressive therapy.

Of the 160 patients, 100 (63%) had IBD, 34 (21%) had an autoimmune disease, 26 (16%) had an autoinflammatory disease, 89 (56%) were female, and their mean age was 15 years.

The researchers observed variation in the testing ordered between the three patient groups. Specifically, 88.2% of autoimmune patients had hepatitis B surface antigen (HBsAg) testing, compared with 96.15% of patients with an autoinflammatory disease and 67% of patients with IBD, while 76.47% of patients with an autoimmune disease had hepatitis B core antibody (anti-HBc) testing, compared with 88.46% of patients with an autoinflammatory disease and 31% of patients with IBD.

In addition, 82.35% of patients with an autoimmune disease had HBsAg testing, compared with 100% of patients with an autoinflammatory disease and 94% of patients with IBD.

Of the 148 patients who had HBsAg testing ordered and completed prior to starting an immunosuppressive drug, there was no statistically significant difference in the percent of patients showing evidence of an immune response to the hepatitis B vaccine (32.14% among patients with an autoimmune disease, 34.62% among patients with an autoinflammatory disease, and 31.91% among patients with IBD). Combined, 67.57% of tested negative for the hepatitis B surface antibody.

“Our study showed that the majority of these patients did not show serologic evidence of immunity despite being fully vaccinated,” Ms. Ritter said. “There was also variation in the testing ordered and a more standardized approach is needed in this high-risk population.” She acknowledged certain limitations of the study, including its retrospective design and lack of a control group.

“This brings us to our next question of whether this indicates a failure of the vaccine, or the way immunity is tested,” she continued. “The CDC and the European Consensus Group on Hepatitis B Immunity recommend a cutoff of greater than 10 mIU/mL. Those that achieve immunity are protected for up to 20 years due to immune memory, even if their antibody levels later drop. There have been rare cases of immunocompetent individuals having evidence of transient asymptomatic infections when antibody levels drop. The chronic disease has only been documented in infants born to positive mothers. In hemodialysis patients, however, clinically significant infections have been documented when antibody levels drop.”

The CDC only recommends postvaccination testing to infants born to positive mothers, health care workers at high risk, hemodialysis patients, people with HIV and other immunocompromised people, and needle-sharing partners of chronically infected people. This is completed 1-2 months following the third vaccine dose, and those with antibody levels less than 10 mIU/mL should be revaccinated. “As some groups do not respond to the vaccine series, alternative dosing and the intradermal vaccine have been studied and shown to be effective in certain groups,” she said.

When it comes to monitoring immunocompromised individuals and giving booster shots, however, there are conflicting recommendations. The CDC recommends yearly testing and booster shots when levels drop below 10 mIU/mL only in hemodialysis patients, while the European Consensus Group recommends testing every 6-12 months for immunocompromised individuals and boosters when their levels drop below 10 mIU/mL.

“The CDC has not yet determined if other immunocompromised individuals should receive a booster, with more research required, but studies have shown it to be effective,” Ms. Ritter said. In a similar study looking at evidence of immunity in children with connective tissue disease who were on immunosuppressive treatment, 50% had no evidence of protective antibodies, compared with 96% in the control group. “In that study, a booster shot was given, and protective antibody concentrations were found at follow-up,” she said.

The researchers reported having no financial disclosures.

[email protected]

The long-anticipated American Academy of Pediatrics guidelines for the treatment of well-appearing febrile infants have arrived, and key points include updated guidance for cerebrospinal fluid testing and urine cultures, according to Robert Pantell, MD, and Kenneth Roberts, MD, who presented the guidelines at the virtual Pediatric Hospital Medicine annual conference.

The AAP guideline was published in the August 2021 issue of Pediatrics. The guideline includes 21 key action statements and 40 total recommendations, and describes separate management algorithms for three age groups: infants aged 8-21 days, 22-28 days, and 29-60 days.

Dr. Roberts, of the University of North Carolina at Chapel Hill, and Dr. Pantell, of the University of California, San Francisco, emphasized that all pediatricians should read the full guideline, but they offered an overview of some of the notable points.

Some changes that drove the development of evidence-based guideline included changes in technology, such as the increased use of procalcitonin, the development of large research networks for studies of sufficient size, and a need to reduce the costs of unnecessary care and unnecessary trauma for infants, Dr. Roberts said. Use of data from large networks such as the Pediatric Emergency Care Applied Research Network provided enough evidence to support dividing the aged 8- to 60-day population into three groups.

The guideline applies to well-appearing term infants aged 8-60 days and at least 37 weeks’ gestation, with fever of 38° C (100.4° F) or higher in the past 24 hours in the home or clinical setting. The decision to exclude infants in the first week of life from the guideline was because at this age, infants “are sufficiently different in rates and types of illness, including early-onset bacterial infection,” according to the authors.

Dr. Roberts emphasized that the guidelines apply to “well-appearing infants,” which is not always obvious. “If a clinician is not confident an infant is well appearing, the clinical practice guideline should not be applied,” he said.

The guideline also includes a visual algorithm for each age group.

Dr. Pantell summarized the key action statements for the three age groups, and encouraged pediatricians to review the visual algorithms and footnotes available in the full text of the guideline.

The guideline includes seven key action statements for each of the three age groups. Four of these address evaluations, using urine, blood culture, inflammatory markers (IM), and cerebrospinal fluid (CSF). One action statement focuses on initial treatment, and two on management: hospital admission versus monitoring at home, and treatment cessation.
 

Infants aged 8-21 days

The key action statements for well-appearing infants aged 8-21 days are similar to what clinicians likely would do for ill-appearing infants, the authors noted, based in part on the challenge of assessing an infant this age as “well appearing,” because they don’t yet have the ability to interact with the clinician.

For the 8- to 21-day group, the first two key actions are to obtain a urine specimen and blood culture, Dr. Pantell said. Also, clinicians “should” obtain a CSF for analysis and culture. “We recognize that the ability to get CSF quickly is a challenge,” he added. However, for the 8- to 21-day age group, a new feature is that these infants may be discharged if the CSF is negative. Evaluation in this youngest group states that clinicians “may assess inflammatory markers” including height of fever, absolute neutrophil count, C-reactive protein, and procalcitonin.

Treatment of infants in the 8- to 21-day group “should” include parenteral antimicrobial therapy, according to the guideline, and these infants “should” be actively monitored in the hospital by nurses and staff experienced in neonatal care, Dr. Pantell said. The guideline also includes a key action statement to stop antimicrobials at 24-36 hours if cultures are negative, but to treat identified organisms.
 

Infants aged 22-28 days

In both the 22- to 28-day-old and 29- to 60-day-old groups, the guideline offers opportunities for less testing and treatment, such as avoiding a lumbar puncture, and fewer hospitalizations. The development of a separate guideline for the 22- to 28-day group is something new, said Dr. Pantell. The guideline states that clinicians should obtain urine specimens and blood culture, and should assess IM in this group. Further key action statements note that clinicians “should obtain a CSF if any IM is positive,” but “may” obtain CSF if the infant is hospitalized, if blood and urine cultures have been obtained, and if none of the IMs are abnormal.

As with younger patients, those with a negative CSF can go home, he said. As for treatment, clinicians “should” administer parenteral antimicrobial therapy to infants managed at home even if they have a negative CSF and urinalysis (UA), and no abnormal inflammatory markers Other points for management of infants in this age group at home include verbal teaching and written instructions for caregivers, plans for a re-evaluation at home in 24 hours, and a plan for communication and access to emergency care in case of a change in clinical status, Dr. Pantell explained. The guideline states that infants “should” be hospitalized if CSF is either not obtained or not interpretable, which leaves room for clinical judgment and individual circumstances. Antimicrobials “should” be discontinued in this group once all cultures are negative after 24-36 hours and no other infection requires treatment.
 

Infants aged 29-60 days

For the 29- to 60-day group, there are some differences, the main one is the recommendation of blood cultures in this group, said Dr. Pantell. “We are seeing a lot of UTIs [urinary tract infections], and we would like those treated.” However, clinicians need not obtain a CSF if other IMs are normal, but may do so if any IM is abnormal. Antimicrobial therapy may include ceftriaxone or cephalexin for UTIs, or vancomycin for bacteremia.

Although antimicrobial therapy is an option for UTIs and bacterial meningitis, clinicians “need not” use antimicrobials if CSF is normal, if UA is negative, and if no IMs are abnormal, Dr. Pantell added. Overall, further management of infants in this oldest age group should focus on discharge to home in the absence of abnormal findings, but hospitalization in the presence of abnormal CSF, IMs, or other concerns.

During a question-and-answer session, Dr. Roberts said that, while rectal temperature is preferable, any method is acceptable as a starting point for applying the guideline. Importantly, the guideline still leaves room for clinical judgment. “We hope this will change some thinking as far as whether one model fits all,” he noted. The authors tried to temper the word “should” with the word “may” when possible, so clinicians can say: “I’m going to individualize my decision to the infant in front of me.”

Ultimately, the guideline is meant as a guide, and not an absolute standard of care, the authors said. The language of the key action statements includes the words “should, may, need not” in place of “must, must not.” The guideline recommends factoring family values and preferences into any treatment decisions. “Variations, taking into account individual circumstances, may be appropriate.”

The guideline received no outside funding. The authors had no financial conflicts to disclose.

The long-anticipated American Academy of Pediatrics guidelines for the treatment of well-appearing febrile infants have arrived, and key points include updated guidance for cerebrospinal fluid testing and urine cultures, according to Robert Pantell, MD, and Kenneth Roberts, MD, who presented the guidelines at the virtual Pediatric Hospital Medicine annual conference.

The AAP guideline was published in the August 2021 issue of Pediatrics. The guideline includes 21 key action statements and 40 total recommendations, and describes separate management algorithms for three age groups: infants aged 8-21 days, 22-28 days, and 29-60 days.

Dr. Roberts, of the University of North Carolina at Chapel Hill, and Dr. Pantell, of the University of California, San Francisco, emphasized that all pediatricians should read the full guideline, but they offered an overview of some of the notable points.

Some changes that drove the development of evidence-based guideline included changes in technology, such as the increased use of procalcitonin, the development of large research networks for studies of sufficient size, and a need to reduce the costs of unnecessary care and unnecessary trauma for infants, Dr. Roberts said. Use of data from large networks such as the Pediatric Emergency Care Applied Research Network provided enough evidence to support dividing the aged 8- to 60-day population into three groups.

The guideline applies to well-appearing term infants aged 8-60 days and at least 37 weeks’ gestation, with fever of 38° C (100.4° F) or higher in the past 24 hours in the home or clinical setting. The decision to exclude infants in the first week of life from the guideline was because at this age, infants “are sufficiently different in rates and types of illness, including early-onset bacterial infection,” according to the authors.

Dr. Roberts emphasized that the guidelines apply to “well-appearing infants,” which is not always obvious. “If a clinician is not confident an infant is well appearing, the clinical practice guideline should not be applied,” he said.

The guideline also includes a visual algorithm for each age group.

Dr. Pantell summarized the key action statements for the three age groups, and encouraged pediatricians to review the visual algorithms and footnotes available in the full text of the guideline.

The guideline includes seven key action statements for each of the three age groups. Four of these address evaluations, using urine, blood culture, inflammatory markers (IM), and cerebrospinal fluid (CSF). One action statement focuses on initial treatment, and two on management: hospital admission versus monitoring at home, and treatment cessation.
 

Infants aged 8-21 days

The key action statements for well-appearing infants aged 8-21 days are similar to what clinicians likely would do for ill-appearing infants, the authors noted, based in part on the challenge of assessing an infant this age as “well appearing,” because they don’t yet have the ability to interact with the clinician.

For the 8- to 21-day group, the first two key actions are to obtain a urine specimen and blood culture, Dr. Pantell said. Also, clinicians “should” obtain a CSF for analysis and culture. “We recognize that the ability to get CSF quickly is a challenge,” he added. However, for the 8- to 21-day age group, a new feature is that these infants may be discharged if the CSF is negative. Evaluation in this youngest group states that clinicians “may assess inflammatory markers” including height of fever, absolute neutrophil count, C-reactive protein, and procalcitonin.

Treatment of infants in the 8- to 21-day group “should” include parenteral antimicrobial therapy, according to the guideline, and these infants “should” be actively monitored in the hospital by nurses and staff experienced in neonatal care, Dr. Pantell said. The guideline also includes a key action statement to stop antimicrobials at 24-36 hours if cultures are negative, but to treat identified organisms.
 

Infants aged 22-28 days

In both the 22- to 28-day-old and 29- to 60-day-old groups, the guideline offers opportunities for less testing and treatment, such as avoiding a lumbar puncture, and fewer hospitalizations. The development of a separate guideline for the 22- to 28-day group is something new, said Dr. Pantell. The guideline states that clinicians should obtain urine specimens and blood culture, and should assess IM in this group. Further key action statements note that clinicians “should obtain a CSF if any IM is positive,” but “may” obtain CSF if the infant is hospitalized, if blood and urine cultures have been obtained, and if none of the IMs are abnormal.

As with younger patients, those with a negative CSF can go home, he said. As for treatment, clinicians “should” administer parenteral antimicrobial therapy to infants managed at home even if they have a negative CSF and urinalysis (UA), and no abnormal inflammatory markers Other points for management of infants in this age group at home include verbal teaching and written instructions for caregivers, plans for a re-evaluation at home in 24 hours, and a plan for communication and access to emergency care in case of a change in clinical status, Dr. Pantell explained. The guideline states that infants “should” be hospitalized if CSF is either not obtained or not interpretable, which leaves room for clinical judgment and individual circumstances. Antimicrobials “should” be discontinued in this group once all cultures are negative after 24-36 hours and no other infection requires treatment.
 

Infants aged 29-60 days

For the 29- to 60-day group, there are some differences, the main one is the recommendation of blood cultures in this group, said Dr. Pantell. “We are seeing a lot of UTIs [urinary tract infections], and we would like those treated.” However, clinicians need not obtain a CSF if other IMs are normal, but may do so if any IM is abnormal. Antimicrobial therapy may include ceftriaxone or cephalexin for UTIs, or vancomycin for bacteremia.

Although antimicrobial therapy is an option for UTIs and bacterial meningitis, clinicians “need not” use antimicrobials if CSF is normal, if UA is negative, and if no IMs are abnormal, Dr. Pantell added. Overall, further management of infants in this oldest age group should focus on discharge to home in the absence of abnormal findings, but hospitalization in the presence of abnormal CSF, IMs, or other concerns.

During a question-and-answer session, Dr. Roberts said that, while rectal temperature is preferable, any method is acceptable as a starting point for applying the guideline. Importantly, the guideline still leaves room for clinical judgment. “We hope this will change some thinking as far as whether one model fits all,” he noted. The authors tried to temper the word “should” with the word “may” when possible, so clinicians can say: “I’m going to individualize my decision to the infant in front of me.”

Ultimately, the guideline is meant as a guide, and not an absolute standard of care, the authors said. The language of the key action statements includes the words “should, may, need not” in place of “must, must not.” The guideline recommends factoring family values and preferences into any treatment decisions. “Variations, taking into account individual circumstances, may be appropriate.”

The guideline received no outside funding. The authors had no financial conflicts to disclose.

The long-anticipated American Academy of Pediatrics guidelines for the treatment of well-appearing febrile infants have arrived, and key points include updated guidance for cerebrospinal fluid testing and urine cultures, according to Robert Pantell, MD, and Kenneth Roberts, MD, who presented the guidelines at the virtual Pediatric Hospital Medicine annual conference.

The AAP guideline was published in the August 2021 issue of Pediatrics. The guideline includes 21 key action statements and 40 total recommendations, and describes separate management algorithms for three age groups: infants aged 8-21 days, 22-28 days, and 29-60 days.

Dr. Roberts, of the University of North Carolina at Chapel Hill, and Dr. Pantell, of the University of California, San Francisco, emphasized that all pediatricians should read the full guideline, but they offered an overview of some of the notable points.

Some changes that drove the development of evidence-based guideline included changes in technology, such as the increased use of procalcitonin, the development of large research networks for studies of sufficient size, and a need to reduce the costs of unnecessary care and unnecessary trauma for infants, Dr. Roberts said. Use of data from large networks such as the Pediatric Emergency Care Applied Research Network provided enough evidence to support dividing the aged 8- to 60-day population into three groups.

The guideline applies to well-appearing term infants aged 8-60 days and at least 37 weeks’ gestation, with fever of 38° C (100.4° F) or higher in the past 24 hours in the home or clinical setting. The decision to exclude infants in the first week of life from the guideline was because at this age, infants “are sufficiently different in rates and types of illness, including early-onset bacterial infection,” according to the authors.

Dr. Roberts emphasized that the guidelines apply to “well-appearing infants,” which is not always obvious. “If a clinician is not confident an infant is well appearing, the clinical practice guideline should not be applied,” he said.

The guideline also includes a visual algorithm for each age group.

Dr. Pantell summarized the key action statements for the three age groups, and encouraged pediatricians to review the visual algorithms and footnotes available in the full text of the guideline.

The guideline includes seven key action statements for each of the three age groups. Four of these address evaluations, using urine, blood culture, inflammatory markers (IM), and cerebrospinal fluid (CSF). One action statement focuses on initial treatment, and two on management: hospital admission versus monitoring at home, and treatment cessation.
 

Infants aged 8-21 days

The key action statements for well-appearing infants aged 8-21 days are similar to what clinicians likely would do for ill-appearing infants, the authors noted, based in part on the challenge of assessing an infant this age as “well appearing,” because they don’t yet have the ability to interact with the clinician.

For the 8- to 21-day group, the first two key actions are to obtain a urine specimen and blood culture, Dr. Pantell said. Also, clinicians “should” obtain a CSF for analysis and culture. “We recognize that the ability to get CSF quickly is a challenge,” he added. However, for the 8- to 21-day age group, a new feature is that these infants may be discharged if the CSF is negative. Evaluation in this youngest group states that clinicians “may assess inflammatory markers” including height of fever, absolute neutrophil count, C-reactive protein, and procalcitonin.

Treatment of infants in the 8- to 21-day group “should” include parenteral antimicrobial therapy, according to the guideline, and these infants “should” be actively monitored in the hospital by nurses and staff experienced in neonatal care, Dr. Pantell said. The guideline also includes a key action statement to stop antimicrobials at 24-36 hours if cultures are negative, but to treat identified organisms.
 

Infants aged 22-28 days

In both the 22- to 28-day-old and 29- to 60-day-old groups, the guideline offers opportunities for less testing and treatment, such as avoiding a lumbar puncture, and fewer hospitalizations. The development of a separate guideline for the 22- to 28-day group is something new, said Dr. Pantell. The guideline states that clinicians should obtain urine specimens and blood culture, and should assess IM in this group. Further key action statements note that clinicians “should obtain a CSF if any IM is positive,” but “may” obtain CSF if the infant is hospitalized, if blood and urine cultures have been obtained, and if none of the IMs are abnormal.

As with younger patients, those with a negative CSF can go home, he said. As for treatment, clinicians “should” administer parenteral antimicrobial therapy to infants managed at home even if they have a negative CSF and urinalysis (UA), and no abnormal inflammatory markers Other points for management of infants in this age group at home include verbal teaching and written instructions for caregivers, plans for a re-evaluation at home in 24 hours, and a plan for communication and access to emergency care in case of a change in clinical status, Dr. Pantell explained. The guideline states that infants “should” be hospitalized if CSF is either not obtained or not interpretable, which leaves room for clinical judgment and individual circumstances. Antimicrobials “should” be discontinued in this group once all cultures are negative after 24-36 hours and no other infection requires treatment.
 

Infants aged 29-60 days

For the 29- to 60-day group, there are some differences, the main one is the recommendation of blood cultures in this group, said Dr. Pantell. “We are seeing a lot of UTIs [urinary tract infections], and we would like those treated.” However, clinicians need not obtain a CSF if other IMs are normal, but may do so if any IM is abnormal. Antimicrobial therapy may include ceftriaxone or cephalexin for UTIs, or vancomycin for bacteremia.

Although antimicrobial therapy is an option for UTIs and bacterial meningitis, clinicians “need not” use antimicrobials if CSF is normal, if UA is negative, and if no IMs are abnormal, Dr. Pantell added. Overall, further management of infants in this oldest age group should focus on discharge to home in the absence of abnormal findings, but hospitalization in the presence of abnormal CSF, IMs, or other concerns.

During a question-and-answer session, Dr. Roberts said that, while rectal temperature is preferable, any method is acceptable as a starting point for applying the guideline. Importantly, the guideline still leaves room for clinical judgment. “We hope this will change some thinking as far as whether one model fits all,” he noted. The authors tried to temper the word “should” with the word “may” when possible, so clinicians can say: “I’m going to individualize my decision to the infant in front of me.”

Ultimately, the guideline is meant as a guide, and not an absolute standard of care, the authors said. The language of the key action statements includes the words “should, may, need not” in place of “must, must not.” The guideline recommends factoring family values and preferences into any treatment decisions. “Variations, taking into account individual circumstances, may be appropriate.”

The guideline received no outside funding. The authors had no financial conflicts to disclose.