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.
Full blood count appears in 14,669 VAERS reports across all vaccines. Of these, 223 reports also mentioned death and 3,718 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 26.9%. The top vaccines associated with this symptom are COVID-19, Flu (Trivalent), Pneumococcal (PPV23). Remember: VAERS reports show temporal association, not causation.
Full blood count has been reported 14,669 times in VAERS from 1990 to 2026.
Of these reports, 223 were associated with death (1.52%) and 3,718 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Full blood count is 26.9%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.