Autism, mercury, and politics

By Robert Kennedy Jr. July 1, 2005

MOUNTING EVIDENCE suggests that Thimerosal, a mercury-based preservative in children's vaccines, may be responsible for the exponential growth of autism, attention deficit disorder, speech delays, and other childhood neurological disorders now epidemic in the United States.

Prior to 1989, American infants generally received three vaccinations (polio, measles-mumps-rubella, and diphtheria-tetanus-pertussis). In the early 1990s, public health officials dramatically increased the number of Thimerosal-containing vaccinations without considering the cumulative impact of the mercury load on developing brains.

In a 1991 memo, Dr. Maurice Hilleman, one of the fathers of Merck's vaccination programs, warned his bosses that 6-month-old children administered the shots on schedule would suffer mercury exposures 87 times the government safety standards. He recommended that Thimerosal be discontinued and complained that the US Food and Drug Administration, which has a notoriously close relationship with the pharmaceutical industry, could not be counted on to take appropriate action as its European counterparts had. Merck ignored Hilleman's warning, and for eight years government officials added seven more shots for children containing Thimerosal.

Mercury is a known brain poison, and autism rates began rising dramatically in children who were administered the new vaccine regimens. A decade ago the American Academy of Pediatrics estimated the autism rate among American children to be 1 in 2,500. Today, the CDC places the rate at 1 in 166, or 1 in 80 boys. Additionally, one in six children is now diagnosed with a related neurological disorder.

Robert Kennedy Jr. is senior attorney for the Natural Resources Defense Council. © Copyright 2005 The New York Times Company

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