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.
Tachycardia appears in 12,590 VAERS reports across all vaccines. Of these, 355 reports also mentioned death and 3,047 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 27.0%. The top vaccines associated with this symptom are COVID-19, Flu (Trivalent), Hepatitis B. Remember: VAERS reports show temporal association, not causation.
Tachycardia has been reported 12,590 times in VAERS from 1990 to 2026.
Of these reports, 355 were associated with death (2.82%) and 3,047 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Tachycardia is 27.0%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.