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Transparent access to VAERS data for informed decision-making. We present the data as-is, with appropriate context and disclaimers.

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Data source: VAERS (Vaccine Adverse Event Reporting System)

Data through 2026 · Updated quarterly

Built by TheDataProject.ai · © 2026 VaccineWatch

Important: VAERS accepts reports of adverse events following vaccination. For any given report, there is no certainty that the reported event was caused by the vaccine. Reports may contain information that is incomplete, inaccurate, coincidental, or unverifiable. Most reports to VAERS are voluntary, which means they are subject to biases. This data cannot be used to determine if vaccines cause or contribute to adverse events.

⚠️

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.

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  3. Administration Routes

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

Related Analysis

→ Who Reports to VAERS→ Reporting Bias→ Risk Context Calculator→ Reporting Trends