Adverse Reactions

Positive Association Found Between Autism Prevalence and Childhood Vaccination

Captured 2018-07-23
Document Highlights

Although individuals probably have a genetic predisposition to develop autism, researchers suspect that one or more environmental triggers are also needed.

[T]he relationship between the proportion of children who received the recommended vaccines by age 2 years and the prevalence of autism (AUT) or speech or language impairment (SLI) in each U.S. state from 2001 and 2007 was determined.

A positive and statistically significant relationship was found: The higher the proportion of children receiving recommended vaccinations, the higher was the prevalence of AUT or SLI.