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.
Viral infection appears in 5,559 VAERS reports across all vaccines. Of these, 104 reports also mentioned death and 972 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 19.4%. The top vaccines associated with this symptom are Chickenpox (Varivax), MMR, DTaP. Remember: VAERS reports show temporal association, not causation.
Viral infection has been reported 5,559 times in VAERS from 1990 to 2026.
Of these reports, 104 were associated with death (1.87%) and 972 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Viral infection is 19.4%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.