Fever during pregnancy linked to higher risk of autism, study finds

3:25 p.m Friday, June 16, 2017 Atlanta health, diet and fitness news
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Pregnant women who experience fevers are associated with a higher risk of having children with autism, according to a new study published in the journal Molecular Psychiatry.

When mothers reported a fever over 99 degrees at any time during pregnancy, the risk of autism increased by 34 percent.

Researchers at Columbia University’s Mailman School of Public Health analyzed data on 95,754 children born in Norway between 1999 and 2009 whose mothers reported their experiences throughout the duration of their pregnancies.

Mothers of 15,701 (or 16 percent) of the children reported having a fever (a symptom of infection) at least once during their pregnancy.

In the U.S., 20 percent of women report one or more fever episodes, according to the study.

Among those mothers, researchers identified 583 cases of autism spectrum disorder in the children.

The findings support the idea that infection during pregnancy (and how the immune system responds to it) could play a role in the development of some cases of ASD, according to the researchers.

“Future work should focus on identifying and preventing prenatal infections and inflammatory responses that may contribute to autism spectrum disorder,” senior author W. Ian Lipkin said in a statement

While previous research has documented the link between fever during pregnancy and autism, the Molecular Psychiatry study is the most robust to date.

Read the full study.

Logan Erickson is an autistic 9-year-old who lives along the Bering Strait in Alaska. A group of mushers have helped raise part of the $30,000 needed to buy him an autism service dog from 4 Paws for Ability in Xenia. Watch this video for details.
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