Important: VAERS reports alone cannot determine if a vaccine caused an adverse event. Reports may contain incomplete, inaccurate, or unverified information. Correlation does not equal causation.
Myocarditis appears in 5,540 VAERS reports across all vaccines. Of these, 245 reports also mentioned death and 3,694 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 71.1%. The top vaccines associated with this symptom are COVID19, SMALL, ANTH. Remember: VAERS reports show temporal association, not causation.
Myocarditis has been reported 5,540 times in VAERS from 1990 to 2026.
Of these reports, 245 were associated with death (4.42%) and 3,694 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Myocarditis is 71.1%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.