For Some Children, Autism Symptoms May Fade With Age

Researchers not sure whether treatment or genetics explain the phenomenon, but suspect both play a part

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"Apart from that, I would tell parents that with all of this an early diagnosis and early intervention is very, very important," Fein added. "If a parent out there has any questions about their child and autism they should not wait and see. If a doctor tells you to wait, you should not. Get an evaluation."

Geraldine Dawson, chief science officer for Autism Speaks, said the study provides concrete support for what many on the front lines of autism have been witnessing.

"Clinicians have long observed that a minority of children who originally received a diagnosis of autism spectrum disorder will lose that diagnosis," she said.

"We still don't know what factors account for why some children lose their diagnosis, whereas others continue to have significant challenges," Dawson added. "However, it is likely that a combination of both early intervention and inherent biological factors play a role."

More information

For more on autism, visit the U.S. National Institutes of Health.

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