Risk of Myopericarditis After COVID-19 Vaccination in Danish Children Aged 5 to 11 Years

Abstract

Myopericarditis is a severe adverse event to COVID-19 vaccines.1 The highest risk has been reported in males aged 12-29 years.2-4 According to the US Vaccine Adverse Event Reporting System (VAERS), the risk in children aged 5-11 years is low with 11 reported cases following 8.7 million doses of Pfizer-BioNTech vaccine.5 However, these numbers may be underestimated due to underreporting.6.