Most children with autism go undiagnosed until after age 3, and many of these children remain undiagnosed until after they reach school age.

The Broad Institute can keep its CRISPR patents, Trump’s vaccine safety panel may be back on, and a drug discovered in fish eases seizures in children.

Although the number of people diagnosed with autism is on the rise, the proportion with severe features has dropped since 2000.

A new computer program accurately estimates the prevalence of autism from children’s medical and school records.

About one in four children with autism hit, scratch or otherwise hurt themselves, suggests an analysis of school and medical records for more than 8,000 children.

Exposure to influenza and a lack of sunlight may drive the increased risk of autism.

School and medical records for children with autism in largely Hispanic neighborhoods often do not reflect the children’s condition.

Watch the complete replay of Maureen Durkin’s webinar, in which she discussed the epidemiology of autism and intellectual disability, including changes in the prevalence of each condition.

Only a small fraction of women who battle infections during pregnancy have children with autism, suggesting that some infections are riskier than others.

Children who have an older sibling with autism are 14 times more likely to have the condition than are those without a family history of the condition.