The Food and Drug Administration said Wednesday it has expanded existing warnings on the two leading COVID-19 vaccines about a rare heart side effect mainly seen in young men.

The FDA has expanded existing warnings on the two leading COVID-19 vaccines about a rare heart side effect mainly seen in young men.

FDA Commissioner Marty Makary and a top deputy recently restricted annual COVID-19 shots to seniors and other Americans at higher risk from the virus.

FDA requires updated warning about rare heart risk with COVID shots Myocarditis emerged as a complication after the first shots became widely available in 2021.

FDA Commissioner Marty Makary and a top deputy recently restricted annual COVID-19 shots to seniors and other Americans at higher risk from the virus.

Myocarditis, a type of heart inflammation that is usually mild, emerged as a rare effect with the first COVID-19 shots.

Myocarditis, a type of heart inflammation that is usually mild, emerged as a rare effect with the first COVID-19 shots.

WASHINGTON (AP) — The Food and Drug Administration said Wednesday it has expanded existing warnings on the two leading COVID-19 vaccines about a rare heart side effect mainly seen in young men.

U.S. health officials have expanded warnings about a rare heart side effect associated with the two leading COVID-19 vaccines.