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VAERS Data Sets

NEW! Expanded public access to VAERS data

On May 8, 2025, CDC and FDA expanded public access to VAERS data in the WONDER database (wonder.cdc.gov) and in VAERS downloadable files (vaers.hhs.gov) to provide a more complete picture of all reported adverse events following vaccination received. This enhancement is part of a broader CDC and FDA effort to improve transparency and access to vaccine safety data, while continuing to protect patient privacy.

  • Prior to May 8, VAERS public data sets only included the first submitted VAERS report (or primary report) for a patient, vaccine and dose combination.
  • VAERS public data sets now include all subsequent reports (or secondary reports) from the same or different reporters, for the same patient, vaccine, and dose combination.
  • Based on this enhancement, in the downloadable data file, it will appear that additional reports have been added, but these are actually the subsequent or secondary reports that have previously not been included in the public data sets.
  • It’s important to note these new reports are related to already reported events and do not represent additional reports of adverse events.

VAERS data CSV and compressed (ZIP) files are available for download in the table below. For information about VAERS data, please view the pdf icon VAERS Data Use Guide [PDF - 310KB], which contains the following information:

  • Important information about VAERS from the FDA
  • Brief description of VAERS
  • Cautions on interpreting VAERS data
  • Definitions of terms
  • Description of files
  • List of commonly used abbreviations

Select the desired time interval to download VAERS data. Each data set is available for download as a compressed (ZIP) file or as individual CSV files. Each compressed file contains the three CSV files listed for a specific data set.

Last updated: May 8, 2025.
( * Data contains VAERS reports processed as of: 04/25/2025. )

Instructions for Saving Data Sets

  1. Click on the file that you want to save.
  2. You will be prompted to enter a unique verification code.
  3. After successful entry of the code a dialog box will prompt you to open or save the file.
  4. To save, click Save As, then specify the location and click Save.
  5. Locate the file by navigating to the directory you specified.
  6. To un-compress a ZIP file, click on the file and follow the instructions to extract and save the CSV files.
  7. Open the CSV files using a spreadsheet application such as Excel or a text editor.

Note for Internet Explorer users: Due to security reasons in your browser's settings you might be prompted to select "show restricted content" in order to view the .csv file as a spreadsheet.

Year Zip File CSV File
(VAERS DATA)		 CSV File
(VAERS Symptoms)		 CSV File
(VAERS Vaccine)
All Years Data*541.23 MB
2025* 3.00 MB 11.10 MB 1.03 MB 1.04 MB
2024 13.66 MB 50.83 MB 5.19 MB 5.13 MB
2023 25.77 MB 102.41 MB 11.37 MB 10.14 MB
2022 64.80 MB 274.76 MB 27.80 MB 21.94 MB
2021 175.86 MB 648.09 MB 81.33 MB 60.04 MB
2020 11.79 MB 43.94 MB 4.81 MB 4.70 MB
2019 12.05 MB 44.88 MB 5.08 MB 4.81 MB
2018 11.16 MB 43.62 MB 5.09 MB 4.94 MB
2017 8.53 MB 33.50 MB 4.11 MB 4.54 MB
2016 8.60 MB 36.12 MB 4.57 MB 5.07 MB
2015 8.06 MB 31.82 MB 4.40 MB 4.64 MB
2014 6.07 MB 21.63 MB 3.37 MB 3.66 MB
2013 5.58 MB 17.60 MB 3.03 MB 3.32 MB
2012 5.32 MB 16.28 MB 2.94 MB 3.19 MB
2011 5.11 MB 15.13 MB 2.86 MB 3.17 MB
2010 6.08 MB 17.78 MB 3.50 MB 3.99 MB
2009 7.34 MB 20.75 MB 3.56 MB 4.08 MB
2008 6.91 MB 21.09 MB 3.11 MB 3.73 MB
2007 6.10 MB 19.17 MB 2.75 MB 3.53 MB
2006 3.55 MB 10.70 MB 1.52 MB 2.29 MB
2005 3.13 MB 9.28 MB 1.33 MB 2.09 MB
2004 3.13 MB 9.68 MB 1.28 MB 2.08 MB
2003 3.22 MB 8.95 MB 1.34 MB 2.21 MB
2002 2.85 MB 8.30 MB 1.12 MB 1.92 MB
2001 2.42 MB 6.97 MB 1.11 MB 1.87 MB
2000 2.10 MB 6.06 MB 1.11 MB 1.71 MB
1999 1.44 MB 3.81 MB 1.05 MB 1.49 MB
1998 1.13 MB 3.03 MB 0.81 MB 1.18 MB
1997 1.25 MB 3.39 MB 0.89 MB 1.27 MB
1996 1.20 MB 3.23 MB 0.86 MB 1.28 MB
1995 1.18 MB 3.13 MB 0.81 MB 1.32 MB
1994 1.16 MB 3.13 MB 0.82 MB 1.36 MB
1993 1.12 MB 3.07 MB 0.81 MB 1.26 MB
1992 1.12 MB 3.18 MB 0.78 MB 1.29 MB
1991 1.06 MB 2.96 MB 0.68 MB 1.16 MB
1990 0.22 MB 0.62 MB 0.15 MB 0.20 MB
Non-Domestic 115.63 MB 493.74 MB 104.82 MB 66.29 MB

Disclaimer: At the request of European regulators, CDC and FDA have removed certain data fields (country codes; reported symptom case narrative free text; diagnostic laboratory data free text field; illness at time of vaccination free text field; chronic conditions free text medical history field; allergies free text field) from foreign VAERS reports which were submitted to VAERS and may not comply with European regulations. Domestic (U.S.) VAERS reports are not affected by this process.

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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).