These studies are not well formed. There is an easier way to test for vaccine damage leading to autism. Compare children with any dosage of vaccines vs children that never received any dosage of a vaccine. The Amish in a very good study found that no Amish born children had autism. A rate of 0. Compared to those children that had autism all have been vaccinated. This enough is for me to know that while one or a single dose does not lead to autism possibly (though i have doubts here too) that many dosages of various vaccines combined in certain ways may lead to autism. This causal path is complex, for certain, but it is clear it is a non zero probability that you will be autistic (and if you watch that new show, telepathic).