The CDC has changed its stance on vaccines and autism, claiming now there's a possible link. The claim, which has been widely debunked, alarmed doctors and delighted anti-vaccine activists.
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Pien Huang is a health reporter on the Science desk. She was NPR's first Reflect America Fellow, working with shows, desks and podcasts to bring more diverse voices to air and online.
Leila Fadel is a host of Morning Edition, as well as NPR's morning news podcast Up First.