Not to say the MMR vaccine or any vaccines for that matter are a good thing, but I believe that heavy metals are the main culprit in our sons autism. The heavy metals damage the small intestinal wall lining which lets undigested or partially digested food into the blood stream which the body developes antibodies to causing a huge amount of allergies. This is called Leaky Gut Syndrome. The heavy metals also tend to migrate to the Central nervous system and brain.
Through Muscle Response Testing our son we have discerned that thallium and aluminum were the causitive agents and that the thallium is in his small intestines and his CNS/Brain. When asked if the MMR vaccine was a causitive agent the answer was no. I don't know if you are familiar with Muscle Response Testing(MRT), but we have found it to be quite accurate and very helpful in determining allergies, what foods or nutritional products to give or not give, what foods they can or can't eat on a meal to meal basis. We are also using NAET to elliminate his allergies and will soon be starting him on bioenergetic chelation (uses the electromagnetic signiture of the chelating substance so doesn't have any of the side effects of normal chelation therapy.
I believe that each and every case of autism is different, what caused it can be different, and treatment of choice can be different.
Well, thats my 2 cents worth. Thanks for letting me voice my opinions.