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DNA testing for siblings of children with ASD may be predictive of future diagnosis

December 5, 2019

One of the key priorities of interventions for autism spectrum disorder (ASD) is starting early, with some evidence showing infants as young as seven months old could benefit. Yet, most children in North America aren’t diagnosed with ASD until they’re over four years of age. New research led by The Hospital for Sick Children (SickKids) and the University of Alberta published on December 5, 2019 in Nature Communications has found testing the DNA of siblings of individuals with ASD may be predictive of a future diagnosis even if symptoms aren’t yet apparent.

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