Do Vaccines Cause Autism?

Many parents believe they do. But a large Danish study, the most rigorous so far, found no link

Any rite of passage that involves jabbing needles into small children is bound to worry more than a few parents. But that doesn't begin to explain why so many moms and dads are convinced--despite mounting scientific evidence to the contrary--that the triple vaccine against measles, mumps and rubella (MMR) causes autism in some youngsters. The latest study exonerating the MMR vaccine comes from Denmark, where investigators looked at the health records of every child born from 1991 through '98, more than 537,000 children. No matter how researchers analyzed the data, there was no difference in the autism rates of children who...

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