According to Shimabukuro, 789 cases of myocarditis/pericarditis have been reported across all ages after the Pfizer/BioNTech and Moderna vaccines, most commonly after the second dose.
The Vaccine Adverse Event Reporting System has seen 475 people ages 30 and younger reporting myocarditis or pericarditis.
Among the 285 cases where the outcome of the illness is known, 270 were discharged from the hospital with about 81% having made a full recovery.
Symptoms can range from fatigue and chest pain to heart rhythm irregularities, cardiac arrest and even death in rare and severe cases.
“We look forward to seeing more data about these cases, so we can better understand if they are related to the vaccine or if they are coincidental,” Dr.
According to the American Academy of Pediatrics, as of June 3, more than 3.9 million children have tested positive for the COVID-19 virus since the onset of the pandemic.
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