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.
Atrial fibrillation appears in 6,359 VAERS reports across all vaccines. Of these, 621 reports also mentioned death and 3,528 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 65.2%. The top vaccines associated with this symptom are COVID19, COVID19-2, VARZOS. Remember: VAERS reports show temporal association, not causation.
Atrial fibrillation has been reported 6,359 times in VAERS from 1990 to 2026.
Of these reports, 621 were associated with death (9.77%) and 3,528 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Atrial fibrillation is 65.2%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.