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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.
Administration Routes Explorer
VAERS tracks both who administers vaccines and how they're given. This tool visualizes the distribution of administration settings and vaccine delivery routes across all reports.
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⚠️ Important Context
- • These fields are often left blank or marked “Other” — the data is incomplete
- • Administration setting doesn't indicate quality of care or likelihood of adverse events
- • The distribution shifted dramatically during COVID-19 as pharmacies began mass vaccination
- • Route of administration is determined by the vaccine formulation, not provider choice