Paul, either of us can throw scientific papers at each other. I can throw this one at you:
Original Research 16 April 2019
Measles, Mumps, Rubella Vaccination and Autism
A Nationwide Cohort Study
Anders Hviid, DrMedSci
, Jørgen Vinsløv Hansen, PhD
, Morten Frisch, DrMedSci
, Mads Melbye, DrMedSci
657 461 children born in Denmark from 1999 through 31 December 2010, with follow-up from 1 year of age and through 31 August 2013.
The study strongly supports that MMR vaccination does not increase the risk for autism, does not trigger autism in susceptible children, and is not associated with clustering of autism cases after vaccination. It adds to previous studies through significant additional statistical power and by addressing hypotheses of susceptible subgroups and clustering of cases.