Vaccines do not cause autism. Neither does acetaminophen (Tylenol) use in pregnancy. Decades of rigorous research and systematic reviews have shown no credible link. Continuing to promote these myths is not only Sex differences in glutathione metabolism and acetaminophen toxicity Acetaminophen and Autism: What You Need to Know Autism Research Institute No link between acetaminophen use during pregnancy and children's autism risk Evaluating the Role of Susceptibility Inducing Cofactors and of Acetaminophen in the Etiology of Autism Spectrum Disorder