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.
Arrhythmia appears in 2,144 VAERS reports across all vaccines. Of these, 137 reports also mentioned death and 553 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 32.2%. The top vaccines associated with this symptom are COVID19, FLU3, HPV4. Remember: VAERS reports show temporal association, not causation.
Arrhythmia has been reported 2,144 times in VAERS from 1990 to 2026.
Of these reports, 137 were associated with death (6.39%) and 553 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Arrhythmia is 32.2%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.