Department of Health and Human Services (HHS)
“Established in 1990, the Vaccine Adverse Event Reporting System (VAERS) is a national early warning system to detect possible safety problems in U.S.-licensed vaccines. VAERS is co-managed by the Centers for Disease Control and Prevention (CDC) and the U.S. Food and Drug Administration (FDA).” (source)
Works of the United States government are not entitled to domestic copyright protection under U.S. law and are therefore in the public domain.
website
adverse-event reporting systems