I'm not mercury/thimerisol basher, but it isn't entirely true that vaccination can't cause autism. It isn't the mercury, it is the potential for overloading the immune system. all those vaccines are reputedly dead. Yes. But the immune system still has to respond to them, to be ready to fight off the real thig some day. One vaccine, probably no big deal for most people most of the time. A few hours of sore arm or osre butt and off you go. But several vaccines, injected into a weakened but not quite obviously compromised immune system over a short period of time? That is a differnet story. That person may become overwhelmed, and then its an open question on what collateral damage may occur.
Anyway, that is the new, and relatively legitimate science, route the "vaccines cause autism" reaserch is going. The potential "solution" would be fewer vaccines spread over a greater period. But that leaves the child open to more infections longer. Or find a way toi detect these borderline cases before the injection series begins.