A new study takes a special look at high-risk children with older siblings diagnosed with autism to show that vaccines don't cause autism. These high-risk children aren't more likely to develop autism if they're vaccinated, according to the report in the Journal of the American Medical Association. "We found that there was no harmful association between receipt of the MMR (measles, mumps and rubella) vaccine and development of autism spectrum disorder," said Dr. Anjali Jain of the Lewin Group, a health consulting group in Falls Church, Virginia, who led the study. Kids with older brothers and sisters with autism were less likely to be vaccinated but those who were vaccinated were no more likely than the unvaccinated children to develop autism, Jain's team found.
