Myocarditis (inflammation of the heart muscle) is an adverse effect of the Pfizer and Moderna Covid vaccines, but it’s rare.
In July, the CDC reported roughly 63 cases of myocarditis per million second shots given to males aged 12 to 17, 51 per million in males aged 18 to 24, 17 per million in males aged 25 to 29, and 2 per million in males aged 30 or older. For females, there were roughly 4 cases per million in those aged 12 to 29 and 1 per million in those 30 or older.
Ninety-six percent of vaccine recipients who developed myocarditis were hospitalized. By June, 95 percent of them had been discharged from the hospital, and none had died.
What to do
Get vaccinated. The benefits outweigh the risks.
