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Maternal fever in pregnancy tied to increased ASD risk in youths

A study in Molecular Psychiatry found that children whose mothers experienced fever during the second trimester of pregnancy were 40% more likely to develop autism spectrum disorders, compared with those whose mothers didn't have fever. The findings, based on data involving 95,754 Norwegian children born from 1999 to 2009 and their mothers, also showed a more than 300% higher ASD risk among those whose mothers had three or more fever episodes after 12 weeks of gestation.

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