Five-year-old Kiernan, 6-year-old Malachai and 19-year-old Skyler are siblings.

Skylar and Kiernan are confirmed to have autism. Their brother Malachai is in the process of being diagnosed, and is likely also on the spectrum.

Most people with autism spectrum disorder (ASD) have social, communication, and other challenges.

“It’s kind of a bombshell,” said their mother, Kami Denison, about the diagnoses. “You know, it blindsides you the first time you hear that. It’s, ‘What did I do wrong?'”

“You always wonder why something like that happens to you,” said the kids’ father, Lance.

These are common questions, but most scientists agree, autism isn’t caused by a parent’s choices. The biggest risk factor is in their genes.

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