Many studies have been conducted to determine if a link exists between vaccination and increased prevalence of autism, with particular attention to the measles-mumps-rubella (MMR) vaccine and those containing thimerosal. These studies have not found a link between vaccines and autism. We strongly encourage parents to have their children vaccinated, because this will protect them against serious diseases. It remains possible that, in rare cases, immunization might trigger the onset of autism symptoms in a child with an underlying medical or genetic condition. Autism Speaks is funding studies on the underlying biology of autism, including studies to better understand medical and genetic conditions that are associated with autism.
We recognize that some parents may still have concerns about vaccines, especially those parents who already have a child or relative with an autism spectrum disorder. Because parents and guardians differ in their sensitivity and concern about this issue, we urge them to find a pediatrician or other health practitioner who will partner with them to consider their concerns and help them ensure the optimal well-being of their child. Establishing open communication and trust with a physician who understands each child and his or her family is the best strategy for keeping a child healthy.
