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A study authored by Columbia researchers debunks the suspicion that the measles, mumps and rubella (MMR) vaccine is the cause of the increasing number of children diagnosed with autism.

The findings—published online in the Public Library of Science—focused on children with autism and gastrointestinal symptoms. It found no relationship between the symptoms and the vaccine.

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"The work reported here eliminates the remaining support for the hypothesis that autism with GI complaints is related to MMR vaccine exposure," said Mady Hornig, associate professor of epidemiology and director of translational research at the Center for Infection and Immunity, part of Columbia's Mailman School of Public Health, and co-corresponding author of the study. "We found no relationship between the timing of MMR vaccine and the onset of either GI complaints or autism."

In addition to the Mailman School of Public Health, the team of researchers also included experts from the Centers for Disease Control and Prevention, Massachusetts General Hospital, and Trinity College Dublin.

For more details, read the press release on the study.

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