
For months, the Moderna vaccine has been under scrutiny because of data that shows young men who receive it are at increased risk for myocarditis, an inflammation of the heart muscle, and pericarditis, an inflammation of the sac around the heart.

For months, the Moderna vaccine has been under scrutiny because of data that shows young men who receive it are at increased risk for myocarditis, an inflammation of the heart muscle, and pericarditis, an inflammation of the sac around the heart.