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Can vaccines cause autism?

Dr. Jeanne Morrison, PhD
Family Practitioner

Although many parents worry about a possible link between certain vaccines or vaccine ingredients, such a link has not been found. Many extensive studies have been done to find out if there is a link, and no connection has been found in any reputable study. In fact, the 1998 study that discussed the possibility of a connection has since been retracted due to lack of evidence.

Sarine Salama
Sarine Salama on behalf of MDLIVE
Psychology Specialist

At this time all studies regarding an autism/vaccine link have been removed from medical journals.At this time all studies regarding an autism/vaccine link have been removed from medical journals.

The most recent controversy around vaccines stems from suspicion of a possible link to the rising rates of autism. Some parents insist that their children developed autism after having early childhood vaccines, such as the measles/mumps/rubella (MMR) vaccine. Some suspect that a preservative once used in childhood vaccines that contained mercury (thimerosal) caused autism.

But numerous scientific investigations regarding a possible link found no connection. Nonetheless, thimerosal was phased out of most vaccines in 2001. Today's childhood vaccines do not have mercury-based preservatives.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.