Much attention has been focused on the MMR shot itself, whereas in all probability it is a combination of the three factors listed above: the increasing number of vaccines, the large amount of mercury, and the inherent danger of the triple vaccine.....The MMR vaccine is also especially suspect because laboratories in England, Ireland, and Japan have found evidence of MMR vaccine viruses in the intestinal tracts of autistic children, but not in control group, non-autistic children.