This is the one for people to bookmark. Meta data of over ONE MILLION CHILDREN. Its about the best quality of evidence you can get. Save it and share at every opportunity. pubmed.ncbi.nlm.nih.gov/24814559/

Vaccines are not associated with autism: an evidence-based meta-analysis of case-control and cohort studies - PubMedThere has been enormous debate regarding the possibility of a link between childhood vaccinations and the subsequent development of autism. This has in recent times become a major public health issue ...pubmed.ncbi.nlm.nih.gov