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Autism spectrum disorder (ASD) affects at least 1.7 percent of 8-year-olds in the U.S., and it can make social communication like talking and interactions with others difficult. Children with autism spectrum disorder (ASD) have a hard time at school and often engage in repetitive behaviors.

Now, researchers show the collection of bacteria and other microorganisms in the gut known as the microbiome contributes to autism-like behaviors such as decreased social