Before searching the data, please read the
U.S. Government disclaimer
The search engine examines
dates, places, and more.
It produces tables, graphs, maps, and full case reports.
and popup help messages guide you through the use of the search engine.
You can also download the data
to do custom analysis.
What is VAERS?
Since 1990, the U.S. Government has collected reports of adverse health events
that follow the administration of vaccinations.
This database, called the
Vaccine Adverse Event Reporting System (VAERS)
is available for anyone to search or download.
Why this site?
Medalerts.org offers an alternative to CDC Wonder,
the U.S. Government's official search engine.
Medalerts is built directly from the U.S. Government data
so it contains the same information.
However, this site offers a better user interface, more powerful search capabilities,
and more extensive reporting, making it the best VAERS search facility on the web.