National vaccine safety monitoring
Report a health problem or error after vaccination
Your report helps scientists spot rare safety signals early. Anyone can file one — you do not need proof that the vaccine caused the problem.
- Progress saved as you go
- Personal details handled carefully
- Keyboard and screen-reader ready
Which path fits you?
- General public
- Short, plain-language questions about what happened. No medical terminology required.
- Healthcare provider
- Clinical detail, administration-error reporting, document upload and supplemental record suggestions.
Reporting is open to everyone
Anyone can report a possible reaction after vaccination — patients, parents, caregivers and healthcare professionals. You do not need to be certain the vaccine caused the problem.
Where would you like to go?
- Report an eventA guided form for patients, caregivers and healthcare providers. About 10 minutes.Continue
- FAQs and helpSearchable answers about who should report, what to include, and what happens next.Continue
- Information & resourcesPlain-language explainers, provider requirements and links to related safety programs.Continue
- Data downloadsDe-identified annual data files and the data dictionary, in CSV format.Continue
What should be reported?
- Any health problem that appears after a vaccination, even if you are unsure it is related.
- Vaccine administration errors — wrong product, wrong dose, expired vaccine, storage problems — whether or not anyone was harmed.
- Events listed in the manufacturer's package insert as contraindications to further doses.
- Reactions serious enough to require emergency care or hospitalization.
What happens to your report
- 1. Confirmation. You receive a reference number right away.
- 2. Coding. The narrative is coded with standard medical terminology.
- 3. Review. Serious reports are prioritized and may trigger a records request.
- 4. Monitoring. De-identified data feeds ongoing safety surveillance.