Data collected from more than 4 million children showed that myocarditis or pericarditis occurred at higher rates than before the vaccines were introduced among 12- to 17-year-olds after receiving the original monovalent Pfizer-BioNTech BNT162b2 (Comirnaty) vaccine, Patricia Lloyd, PhD, ScM, of the FDA in Silver Spring, Maryland, and colleagues reported in JAMA Network Open.
Researchers also found a statistical signal for seizures after vaccination with the BNT162b2 vaccine in children aged 2 to 4 years and with the Moderna mRNA-1273 (Spikevax) vaccine in children aged 2 to 5 years.
A seizure, also called a seizure or seizure, is an abnormal (synchronized) discharge of nerve cells (neurons) in the brain due to an epileptic or non-epileptic cause.
The study found a total of 72 cases of seizures in these children, the majority of which were febrile seizures (71%). The median time between vaccination and diagnosis of attack was 2 days (range 1-5).
“The new statistical signal for seizures observed in our study should be interpreted with caution,” Lloyd and co-authors of the study wrote, adding that further research is warranted. “Because fever attacks can be common in young children for a variety of reasons, the analysis may have identified fever attacks that are not related to the vaccination.
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Tags: Research COVID vaccine finds signal risk seizures children
