Mercury in vaccines, long suspected as a cause of autism, has been ruled out in a new study of children suffering from the brain disorder. Most mercury was removed from the vaccine preservative thimerosal in 2001—but instead of autism rates falling, they continued to rise in California, according to the study published in the Archives of General Psychiatry.
"Autism did not occur through immunizations," said one physician, who encouraged parents to vaccinate their children and avoid unproven and dangerous "treatments" for autism. What causes autism remains a mystery, and researchers urged a continued search for risk factors. As many as 1.5 million people in the US suffer from some form of the socially isolating disorder.