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.
Incorrect route of drug administration appears in 1,889 VAERS reports across all vaccines. Of these, 3 reports also mentioned death and 38 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 2.2%. The top vaccines associated with this symptom are Shingles (Zostavax), Flu (Trivalent), Chickenpox (Varivax). Remember: VAERS reports show temporal association, not causation.
Incorrect route of drug administration has been reported 1,889 times in VAERS from 1990 to 2026.
Of these reports, 3 were associated with death (0.16%) and 38 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Incorrect route of drug administration is 2.2%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.