Timeline: COVID-19 Vaccines and Myocarditis

A timeline of COVID-19 vaccines and myocarditis.

COVID-19 vaccines in a file photograph. Jacquelyn Martin/Pool/AFP via Getty Images

2020

Sept. 22, 2020: U.S. Centers for Disease Control and Prevention (CDC) identifies myocarditis as an adverse event of special interest, or a potential side effect.

Oct. 30, 2020: U.S. Food and Drug Administration (FDA) identifies myocarditis as an adverse event of special interest.