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."
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.
Dr. Nancy Snyderman (NBC Today Show) speaks with Meredith Vieira about childhood illnesses being on the the rise as parents refuse vaccines for their children.
