He also made a number of dubious claims about autism, vaccines and treatments. TRUMP: “Tylenol during pregnancy can be associated with a very increased risk of autism.”THE FACTS: Studies don’t prove that. Autism is found in Amish communitiesTRUMP, saying certain groups that don’t take vaccines or pills have no autism, “the Amish, is an example. As for autism, scientists and leading advocacy groups for people with autism agree there’s no vaccine link to the disorder. The Autism Science Foundation cautions that their non-autistic relatives also often have those antibodies, suggesting that’s not a cause of autism.