evidence: A new meta-analysis of 10 studies involving more than 1.2 million children reaffirms that vaccines don’t cause autism; MMR shot may actually decrease risk May 19, 2014A meta-analysis of ten studies involving more than 1.2 million children reaffirms that vaccines don’t cause autism. If anything, immunization was associated with decreased risk that children would develop autism, a possibility that’s strongest with the measles-mumps-rubella vaccine. [...] "This analysis provides further confirmation for a lack of association between vaccines and autism that the broader healthcare community has understood and embraced for some time," comments Autism Speaks Chief Science Officer Rob Ring. "Autism Speaks’ own policy on vaccines echoes those of other credible healthcare organizations like the American Academy of Pediatrics and the World Health Organization. We strongly encourage parents to work with their physician to ensure their children receive the full benefits immunization offers in protecting their loved ones against a variety of preventable childhood diseases."