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.
Muscular weakness appears in 20,544 VAERS reports across all vaccines. Of these, 192 reports also mentioned death and 4,577 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 23.2%. The top vaccines associated with this symptom are COVID-19, Flu (Trivalent), Shingles (Zostavax). Remember: VAERS reports show temporal association, not causation.
Muscular weakness has been reported 20,544 times in VAERS from 1990 to 2026.
Of these reports, 192 were associated with death (0.93%) and 4,577 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Muscular weakness is 23.2%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.