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.
Complete list of 104 vaccines with adverse event reports in VAERS. Click any vaccine name to see detailed analysis including yearly trends, age breakdowns, and associated symptoms.
VAERS tracks every vaccine licensed in the United States. This page shows aggregate report counts — higher numbers typically reflect widespread use (e.g., COVID-19 and flu vaccines), not higher risk. Always consider denominators when interpreting these numbers.
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.
These vaccines have the highest number of reports in VAERS. Remember: more reports doesn't mean more dangerous — it often reflects widespread use.
Vaccines in VAERS span several categories, from routine childhood immunizations to specialized travel and occupational vaccines.
VaccineWatch processes the same raw VAERS data files available from the CDC. Vaccines are categorized by their VAERS type code (e.g., COVID19, FLU3, MMR). Reports listing multiple vaccines are counted under each vaccine listed. Death, hospitalization, and ER visit counts are derived from outcome flags in the VAERS data files. For full details, see our methodology page.