Why is autism 10 times as prevalent among young children today as it was in the 1980s? Many presents, nothing that the onset of symptoms coincided with their child’s vaccination against measles, mumps and rubella (MMR), are convinced that the mercury used as a preservative in the vaccine is to blame. But doctors have not been able to find a link, and now the results of a Danish survey of more than 500,000 children should finally put the theory to rest. The researches found no difference in the incidence in the incidence of autism between children who received MMR shots and those who did not.
The more likely reasons for the increase: a broader definition of autism and greater awareness of its symptoms among doctors and parent.
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