Despite study results disproving the connection, Wakefield’s theories have raised controversy within the autism community. One important reason for this is the fact that regressive autism usually becomes obvious between the age of two and three -- that is, at exactly the same time as children receive the combined MMR (Mumps-Measles-Rubella) vaccine, the chicken pox vaccine, and several other virus-containing shots. Some parents claim that they saw their child react directly to the vaccine with autistic regression. (Of course, these observations don't prove that the MMR is to blame for autism; only replicable, double-blind studies can actually prove cause and effect.)
Other research carried out in 1998 by University of Michigan researchers Dr. Vijendra Singh and Dr. Victor Yang seemed to show yet another correlation between the MMR and brain injury. According to an article produced by the University of Michigan, their findings suggest "that exposure to the measles virus may trigger an autoimmune response that interferes with the development of myelin [a protein found in the protective sheaths around nerve fibers in the brain]… If myelin in the brain doesn’t develop properly, nerve fibers won’t work as they should. This could be one way that the brain abnormalities associated with autism arise."
Even more apparent evidence of the live-virus/autism link has been raised more recently in investigative journalism by the magazine and website Science Daily. According to their research,"Children in families with problematic reactions to chickenpox virus may be at risk for developing autism if they get that live-virus immunization too close to other live-virus vaccines."
Meanwhile, research by the MIND Institute, Cure Autism Now and others seems to suggest that autism may actually break down into subgroups (phenotypes) with different etiologies (causes). It also seems to be the case that a significant sub-group of autistic individuals do have weaker immune systems, gastrointestinal problems, food intolerances and bowel issues. Is it possible that this sub-group is more sensitive than most to live-virus vaccines? Could GI problems actually lead to autism? Or are the autism and the GI issues both symptoms of some other unknown disorder?
