The vaccine-autism controversy has been brewing ever since Andrew Wakefield published his infamous 1998 paper in The Lancet. Fourteen years later, the study has been retracted and scientists have had no luck finding a legitimate link between childhood vaccinations and autism. Yet, the debate rages on.

Why does over 20 percent of the population still think that vaccines cause autism? And what happens when parents act on their fears, refusing to inoculate their own children against dangerous diseases like measles, mumps, and rubella?

To learn more, I spoke with Seth Mnookin, lecturer in MIT's graduate program in science writing and author of "The Panic Virus" To hear what he had to say, watch the video above and/or click the link below. And don't forget to weigh in by leaving your comment at the bottom of the page. Come on, talk nerdy to me.

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