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.
Varicella appears in 2,734 VAERS reports across all vaccines. Of these, 11 reports also mentioned death and 91 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 3.7%. The top vaccines associated with this symptom are Chickenpox (Varivax), Shingles (Zostavax), MMR. Remember: VAERS reports show temporal association, not causation.
Varicella has been reported 2,734 times in VAERS from 1990 to 2026.
Of these reports, 11 were associated with death (0.40%) and 91 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Varicella is 3.7%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.