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.
Hypotonia appears in 5,927 VAERS reports across all vaccines. Of these, 111 reports also mentioned death and 1,618 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 29.2%. The top vaccines associated with this symptom are Hib, Polio (OPV), DTaP. Remember: VAERS reports show temporal association, not causation.
Hypotonia has been reported 5,927 times in VAERS from 1990 to 2026.
Of these reports, 111 were associated with death (1.87%) and 1,618 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Hypotonia is 29.2%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.