<qa>  What is the only treatment for ASD symptoms?Autism spectrum disorder ASD is a heterogeneous neurodevelopmental disorder often with life-long consequences that affects young children during critical developmental periods. The Centers for Disease Control estimates that ASD affects as many as 14.7 per 1000 children 1 in 68. Despite the dramatic rise in the detected prevalence of ASD over the past two decades, no effective medical treatment has been developed to address core ASD symptoms social communication and repetitive behavior, the closely associated problem of language impairment, or the underlying pathophysiology of ASD. Currently, the only accepted treatment for core ASD symptoms is behavior therapy, which may entail intensive one-on-one treatment over several years. 