A nationwide cohort study of all children born in Denmark to Danish-born mothers between 1999 through 2010 concluded that the mumps, measles, and rubella (MMR) vaccine does not increase the risk of autism, does not trigger autism in susceptible children, and is not associated with clustering of autism cases following vaccination. The findings are published in Annals of Internal Medicine.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/no-link-found-between-mmr-vaccine-and-autism-even-among-children-with-other-risk-factors-for-autism