Waiting a few additional weeks, the agency wrote, could help limit myocarditis or pericarditis among young adults.

Vaccine-associated myocarditis shows an injury pattern on cardiac MRI similar to other causes of myocarditis, but abnormalities are less severe. 

The study's authors said their research “further highlights the effectiveness of the COVID-19 vaccine overall.”

Researchers emphasized that the benefits of the vaccine still far outweigh the risks. 

The medication, originally developed to treat celiac disease, could provide significant relief for young MIS-C patients. 

The small study included patients with and without coronary artery disease. 

Even patients who were never hospitalized for COVID-19 face a heightened risk of cardiovascular issues.

The study's authors said some of their findings surprised them.