How Much Do You Know About Autism?

Autism is a developmental disability that usually starts in early childhood. Because different children can have widely different symptoms, autism is classified as a "spectrum disorder," which means it is a group of disorders with similar features, ranging in severity from mild to serious. Find out more about autism by taking the following quiz.

1. A person with autism has difficulty interacting with others. Which of these is an example of impaired social interaction?
2. Autism varies widely in severity and symptoms, making it difficult to diagnose. Which of these behaviors should raise red flags for parents?
3. What's the cause of autism?
4. Which vaccine has been falsely linked to autism?
5. Autism can be cured with: