Siblings and autism

Doctors finally have an answer for parents of autistic children who want to know about the risks of having another child.

A new study finds an infant with an older sibling with autism has a nearly 20% risk for developing the disorder.

Boys, and those with multiple siblings with autism, have a roughly 30% risk for autism.

Experts hope to use this information to identify kids who have the highest risk for autism, and start treatment as soon as possible.