Study Explores Possible Tie Between Fever, Flu in Pregnancy and Autism

Even if higher risk exists, it's still very small, researcher stressed

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U.S. expert Halladay had advice for mothers-to-be.

"Pregnant women should follow the direction of their doctor or health care provider to maintain a healthy pregnancy," Halladay said. "This includes avoiding illness and infection."

While the study found a possible association between maternal infection and autism, it did not prove a cause-and-effect relationship.

More information

For more on autism, visit the U.S. Centers for Disease Control and Prevention.

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