The estimated number of U.S. autistic kids has skyrocketed by 78% since 2000, according to a report from the federal Centers for Disease Control and Prevention.
One in 88 American kids has autism, according to the new figures. Among boys, it's one in 54.
Why? One expert says: "Better diagnosis, broader diagnosis, better awareness, and roughly 50% of 'We don't know.'"
One advocate says: "we have an epidemic of autism in the United States."