"A mercury-containing preservative rarely used in the United States should not be banned as an ingredient in vaccines, U.S. pediatricians said Monday, in a move that may be controversial."
"In its statement, the American Academy of Pediatrics (AAP) endorsed calls from a World Health Organization (WHO) committee that the preservative, thimerosal, should not be considered a hazardous source of mercury that could be banned by the United Nations.
The AAP in 1999 asked for its removal from vaccines in the United States because of a concern that youngsters receiving multiple shots containing thimerosal might get too much mercury - and develop autism or other neurodevelopmental problems, despite the lack of hard evidence at the time."
Genevra Pittman reports for Reuters December 18, 2012.