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.
Chills appears in 156,139 VAERS reports across all vaccines. Of these, 650 reports also mentioned death and 6,684 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 4.7%. The top vaccines associated with this symptom are COVID19, VARZOS, FLU3. Remember: VAERS reports show temporal association, not causation.
Chills has been reported 156,139 times in VAERS from 1990 to 2026.
Of these reports, 650 were associated with death (0.42%) and 6,684 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Chills is 4.7%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.