This is a hot topic in the autism community, especially amongst parents who have to make a decision about vaccinating their children. My son had already had all his vaccinations before I even heard of the controversy, so I didn't have to make the decision. I probably would have chosen to vaccinate anyway, given that when we were little, my sister contracted encephalitis from the measles and nearly died. It caused pretty significant neurological damage for her. The irony is that the vaccine actually was available at the time, but it was fairly new, and the pediatrician told my parents, who didn't have health insurance for us, that "kids get the measles all the time and do just fine."