Safety of Ancestral Monovalent BNT162b2, mRNA-1273, and NVX-CoV2373 #COVID19Vaccines in US Children Aged 6 Months to 17 Years | Pediatrics | JAMA Network Open | JAMA Network https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2818033 “#Myocarditis and #pericarditis are rare events, with a reported mean incidence of 39.3 cases per 1 million vaccine doses administered in children aged 5 to 17 years within 7 days after BNT162b2 vaccination. (1/3)