VAERS

CDC / FDA

Source homepage

Access tierBULK-DOWNLOAD Files to download and parse locally.
Access methodBulk download
AuthenticationNone
RegionUnited States
Topicsvaccine-adverse-events
Update cadenceweekly
Statusverified · last checked 2026-08-08
Registry idvaers

Quirks & gotchas

Also queryable via WONDER. Spontaneous reports — no denominators; heavy methodological caveats mandatory.

Provenance

Catalog contents: 114 public health data sources
Source of record: registry/sources.yaml in the HealthDataWhiz repository
Built: 2026-08-09
Machine-readable: catalog.json (CC-BY, reuse freely)
This entry: vaers in registry/sources.yaml
Last verified: 2026-08-08

This catalog describes where public health data lives and how to access it. It is not medical advice, and it does not host or redistribute the data itself — always read each source's own documentation, licence, and suppression rules before using it. Access details drift; entries carry the date we last verified them. Sources marked RESTRICTED are listed for reference only — they require an application or data-use agreement and we never automate access to them.