(Karl Merton Ferron, / February 17, 1999)

We've all heard that vaccines can lead to autism. But we've also heard that it's just a myth. And almost every health expert disputes the vaccine-autism link, as do numerous studies. But it's always in your mind: Am I doing the right thing?

Some parents have tried to straddle those two schools of thought by having their infants vaccinated, but asking the pediatrician to space them out more than he or she normally would. A new study by the Centers for Disease Control says that spacing actually has no effect. Read about it in this NPR report.