Transparency & Methodology

Reports

• Reports are self-reported and are reviewed for completeness, not medically verified.
• People choose to report, so the database is not a representative sample and cannot measure how often events happen.
• A report shows that an event occurred after vaccination — not that the vaccine caused it.
• Counts are published only after verification, and small groups are not shown separately.

Research Library

• Each study is listed with its original source and DOI, study type, size, key finding and limitations.
• Peer-reviewed studies and preprints are labelled differently.
• Summaries are written in plain language and checked against the original.
• We include studies that find associations and studies that do not. Anyone may suggest a study.

Separation of content

• Personal reports, published research and general medical information are kept visibly separate.
• Commercial content is never part of the research or report sections.

Corrections

Found an error? Tell us. Corrections are made promptly.