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.
Speech disorder appears in 5,626 VAERS reports across all vaccines. Of these, 104 reports also mentioned death and 1,543 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 29.3%. The top vaccines associated with this symptom are COVID-19, MMR, Hib. Remember: VAERS reports show temporal association, not causation.
Speech disorder has been reported 5,626 times in VAERS from 1990 to 2026.
Of these reports, 104 were associated with death (1.85%) and 1,543 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Speech disorder is 29.3%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.