Autism hysteria - based on "observations" of 12 children, and deeply, deeply flawed! Link goes to the British Medical Journal article exposing the fraud. A modern tragedy, exploiting millions of parents and kids.
Some children are immunocompromised or are allergic to a component within the vaccine and cannot be vaccinated. They rely on herd immunity to keep them safe and healthy. Image courtesy of Refutations to Anti-Vaccine Memes.
This is an excellent article by a mother of two autistic children and a MUST READ: As an autism parent, it offends me that my children's condition is being used to scare people away from life-saving medical treatments.