Dozens of studies have failed to find evidence of a link. The decision to re-examine the question comes as a measles outbreak, driven by low vaccination rates, widens in Texas. Dozens of studies have failed to find evidence of a link. The decision to re-examine the question comes as a measles outbreak, driven by low vaccination rates, widens in Texas. United States Politics and Government, Vaccination and Immunization, Autism, Children and Childhood, Measles, Centers for Disease Control and Prevention, Kennedy, Robert F Jr NYT > Science