The United States Anti-Vaccination Movement is composed of a variety of individuals ranging from former doctors who should know better, to semi-celebrities who have no medical training, to anti-government conspiracy theorists who distrust anything that the government says. They all hold onto the mistaken belief that autism is caused by receiving childhood vaccines.
Most anti-vaccination believers claim that the compound Thimerosal led to an increase in autism cases. The Measles/Mumps/Rubella vaccine is their usual target. However, Thimerosal was never used as a preservative in the Measles/Mumps/Rubella vaccine. No vaccine licensed since 1999 has contained Thimerosal as a preservative, except a few multi-dose container vaccines such as some (but not all) HIB and Influenza vaccines. Autism has not declined since 1999, thereby disproving this connection. However, this has not stopped anti-vaccination believers from claiming that it was the MMR vaccine itself that caused autism or that it was vaccines in general that caused autism. All of these ideas have been disproven in multiple scientific and legal examinations of the evidence. The primary scientific reason for the increase in autism diagnoses is due to more disorders being included in the Autism Spectrum and doctors getting better at diagnosing the characteristics of autism…
The Anti-Vaccination Movement has a body count attached to its name. This website publishes the total number of vaccine preventable illnesses and vaccine preventable deaths that have happened in the United States since this 2007 increase in speaking out against vaccines.
“Is the United States Anti-Vaccination Movement directly responsible for every vaccine preventable illness and every vaccine preventable death listed here? No. However, the United States Anti-Vaccination Movement may be indirectly responsible for at least some of these illnesses and deaths and even one vaccine preventable illness or vaccine preventable death is too many.”