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.
Incomplete course of vaccination appears in 5,472 VAERS reports across all vaccines. Of these, 30 reports also mentioned death and 152 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 3.3%. The top vaccines associated with this symptom are Shingles (Zostavax), COVID-19, Hepatitis A+B. Remember: VAERS reports show temporal association, not causation.
Incomplete course of vaccination has been reported 5,472 times in VAERS from 1990 to 2026.
Of these reports, 30 were associated with death (0.55%) and 152 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Incomplete course of vaccination is 3.3%.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.