NBC's Matt Lauer takes an unprecedented look at the emotional debate surrounding common vaccine and the suggestion of a possible link to autism with "Dose of Controversy."
NBC's Dr. Nancy Snyderman talks with Natalie Morales about a study out today offering new insight about the relationship between gastrointestinal diseases and autism.
Because many parents have had no experience with the diseases immunizations are designed to protect a child from, many are more afraid of the immunizations themselves. But the real danger is in not having a child immunized.