Acute Myocarditis Following COVID-19 mRNA Vaccination in Adults Aged 18 Years or Older

Abstract

Vaccination is an essential component of the public health strategy to end the COVID-19 pandemic. 1-3 Recently, there have been reports of acute myocarditis following COVID-19 mRNA vaccine administration. 4-6 We evaluated acute myocarditis incidence and clinical outcomes among adults following mRNA vaccination in an integrated health care system in the US.