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.
Body temperature increased appears in 16,993 VAERS reports across all vaccines. Of these, 139 reports also mentioned death and 1,464 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 9.4%. The top vaccines associated with this symptom are COVID-19, Flu (Trivalent), Pneumococcal (PPV23). Remember: VAERS reports show temporal association, not causation.
Body temperature increased has been reported 16,993 times in VAERS from 1990 to 2026.
Of these reports, 139 were associated with death (0.82%) and 1,464 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Body temperature increased is 9.4%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.