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.
C-reactive protein increased appears in 4,956 VAERS reports across all vaccines. Of these, 132 reports also mentioned death and 2,826 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 59.7%. The top vaccines associated with this symptom are COVID19, SMALL, HIBV. Remember: VAERS reports show temporal association, not causation.
C-reactive protein increased has been reported 4,956 times in VAERS from 1990 to 2026.
Of these reports, 132 were associated with death (2.66%) and 2,826 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning C-reactive protein increased is 59.7%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.