MMR Vaccine Not Linked to Autism, Even in High-Risk Kids

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MMR Vaccine Not Linked to Autism, Even in High-Risk Kids


Receipt of the measles, mumps, and rubella (MMR) vaccine was not linked to an increased risk for autism spectrum disorder (ASD), even when older siblings had ASD, a new study shows.
“These findings indicate no harmful association between MMR vaccine receipt and ASD even among children already at higher risk for ASD,” Anjali Jain, MD, from the Lewin Group, Falls Church, Virginia, and colleagues write. The researchers present their findings in an article published in the April 21 issue of JAMA.
The study’s main outcomes and measures were ASD status, which the researchers defined as two medical claims with a diagnosis code at any point along the autistic disorder or other specified pervasive developmental disorder, including Asperger syndrome, or unspecified pervasive developmental disorder (International Classification of Diseases, Ninth Revision, Clinical Modification, 299.0x, 299.8x, 299.9x).


JAMA. 2015;313:1518-1519, 1534-1540.

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