How Did the MMR Vaccine Become So Controversial?
Unlike the flu vaccine and a number of other childhood immunizations, the mumps/measles/rubella vaccine does not and did not contain thimerosal (a mercury-based preservative). MMR is one of several live viral vaccines (chicken pox vaccine and the nasal flu vaccine are two others). It is routinely given at 12 to 15 months of age, which is the age when autism is first likely to become evident. The concern over MMR began when Dr. Andrew Wakefield, a British gastroenterologist, tested 12 youngsters with and without autism and found a possible link between measles virus in the gut and autism. The theory presented was that certain children have a genetic predisposition to immune issues -- and that a variety of environmental toxins begin to attack the child's immune system early on. Researcher's at Wakefield's Texas-based foundation called Thoughtful House, claim that "The child develops a leaky gut, tissue damage gets worse, the immune system grows...