I found a large Facebook group of parents of autistic kids that was willing to allow me to do a survey.
So I asked one question: “If your child became suddenly autistic within 90 days after a vaccination, how many normal days did you observe between vaccination and the sudden onset” where “normal” means you observed behavior similar to the period before vaccination. 79% of parents answered 0 or 1 day.
That statistic is inconsistent with the claim that “vaccines don’t cause autism.”
What it shows is that the vaccine is the start of a cascade; if there is a sudden regression, 80% of the time, the day of vaccination is the last normal day of a child’s life.
