Vaccine Adverse Event Reporting System (VAERS)
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This website is being modified to comply with President Trump’s Executive Orders.

VAERS will undergo routine maintenance on the third Thursday of each month from 8:30 p.m. EST until Friday at 12:30 a.m. EST.
The website and data access services will be unavailable during this time.
Please contact us at support@VAERS.org if you have any questions.

Have you had a reaction following a vaccination?

  1. Contact your healthcare provider.
  2. Report an Adverse Event using the VAERS online form or the downloadable PDF. New!

Important: If you are experiencing a medical emergency, seek immediate assistance from a healthcare provider or call 9-1-1. CDC and FDA do not provide individual medical treatment, advice, or diagnosis. If you need individual medical or health care advice, consult a qualified healthcare provider.

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Click here for information on reporting to VAERS after COVID-19 vaccination
Doctor consulting patient on how to report to VAERS

Report an Adverse Event

Review reporting requirements and submit reports.

Individual searching vaccine adverse events data

Search VAERS Data

Download VAERS Data and search the CDC WONDER database.

Individual browsing VAERS web resources

Review Resources

Find materials, publications, learning tools, and other resources.

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Submit Follow-up Information

Upload additional information related to VAERS reports.

Helpful Links

Fact Sheet for General Public and Healthcare Providers document

pdf icon Fact Sheet for General Public and Healthcare Providers [pdf - 415KB]

Summary of 2016-2017 Influenza Vaccine Information document

Summary of 2016-2017 Influenza Vaccine Information

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VAERS Publications

Image of Print and Web Material document

Print and Web Material

Vaccine Safety Information

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Ensuring Vaccine Safety

Learn how CDC works to ensure the safety of vaccines

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Safety monitoring in VAERS

Post-licensure vaccine safety monitoring using VAERS

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Information For Healthcare Providers

Specific information for healthcare providers

Note: To view PDF files, download the free Adobe Acrobat Reader.

VAERS is co-sponsored by the Centers for Disease Control and Prevention (CDC), and the Food and Drug Administration (FDA), agencies of the U.S. Department of Health and Human Services (HHS).