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.
Blood test appears in 30,290 VAERS reports across all vaccines. Of these, 242 reports also mentioned death and 7,420 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 25.3%. The top vaccines associated with this symptom are COVID-19, Shingles (Zostavax), Flu (Trivalent). Remember: VAERS reports show temporal association, not causation.
Blood test has been reported 30,290 times in VAERS from 1990 to 2026.
Of these reports, 242 were associated with death (0.80%) and 7,420 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Blood test is 25.3%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.