Doctors in the U.K., Spain, Scotland, and the U.S. are observing a big spike in "severe hepatitis cases" in children 🧐
· Apr 16, 2022 ·

Not to sound too understated here but this is, uh, a bit of a big alarm:

A string of severe hepatitis cases in children has doctors across both sides of the pond spooked. Dozens of children in the UK and Europe, as well as some in the U.S., have come down with symptoms of hepatitis not currently explained by known causes. Theories for the outbreak include the resurgence of an existing but usually quieter germ, complications of covid-19, or even the arrival of a novel or mutated virus.

The apparent outbreak is occurring in multiple countries:

Since January this year, UK doctors have reported a concerning rise of severe, sometimes life-threatening hepatitis cases in children—above the normal baseline rate of incidence. At least 74 cases documented in the country seem to fit the bill, with children not testing positive for any of the known hepatitis viruses. In a case report by doctors from Scotland published Thursday, the authors noted that three children became so sick that they were evaluated for a possible liver transplant. At least six children in the UK have received a liver transplant, according to a recent summary by the World Health Organization.

This week, health officials in Spain reported three of their own cases, including one child who also needed a transplant. And in the U.S., health officials in Alabama have reported at least nine hepatitis cases in children dating back to October 2021 that similarly elude a simple explanation. A public health alert issued by the Alabama Department of Public Health to doctors in February alluded to one possible case in another state but provided no further details.

This is what we call a medical puzzler, folks.

One compelling theory is that, after two years of significantly reduced social interaction worldwide, human beings lack the robust immunity necessary to fight off rather common viruses:

The leading theory right now is that these cases could be caused by adenoviruses, which are a common source of colds and other illnesses. Many infectious diseases have been less active during the pandemic, largely thanks to measures meant to contain the incredibly contagious coronavirus. But with the world opening up and people spending more time with one another, it's expected that these germs will start to spread again. Because we might have less population immunity to these pathogens, some could cause larger-than-usual outbreaks as they return. So it's possible that a known adenovirus that rarely causes hepatitis in kids is now temporarily surging back up.

Whatever the explanation is, they'd better figure it out fast.

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