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Vaccine Safety > Issues of Interest > Thimerosal
Mercury and Vaccines
(Thimerosal)

 

At a glance: Thimerosal is a mercury-containing preservative used in some vaccines and other products since the 1930's. No harmful effects have been reported from thimerosal at doses used in vaccines, except for minor reactions like redness and swelling at the injection site. However, in July 1999, the Public Health Service (PHS) agencies, the American Academy of Pediatrics (AAP), and vaccine manufacturers agreed that thimerosal should be reduced or eliminated in vaccines as a precautionary measure.

Today, with the exception of some Influenza (flu) vaccines, none of the vaccines used in the U.S. to protect preschool children against 12 infectious diseases contain thimerosal as a preservative.

This page leads to many pages that answer common questions along with links to background documents, etc.

Jump to links and their descriptions:
Mercury and
Vaccines Fact
Sheet
 
Key messages, facts, and additional sources of information on MMR vaccine and autism
FAQs Answers to frequently asked questions about:
IOM reports

The Institute of Medicine (IOM) reports dated May 2004 and October 2001:

CDC Research on the Safety of Thimerosal-Containing Vaccines Key messages and answers to questions about CDC research (e.g., Vaccine Safety Datalink research) into possible links between thimerosal in childhood vaccines and neurodevelopmental disorders such as autism, attention deficit disorder, and speech delays
Additional sources of information

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This page last reviewed and modified on May 18, 2004

   

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