Published in Vaccine Weekly, October 20th, 2004
"Before 1963, poliovirus vaccine produced in the United States was contaminated with simian virus 40 (SV40), which causes cancer in animals. To examine whether early-life SV40 infection can cause human cancer, the authors studied 54,796 children enrolled in the U.S.-based Collaborative Perinatal Project (CPP) in 1959-1966, 52 of whom developed cancer by their eighth birthday," scientists writing in the American Journal of Epidemiology report.
"Those children whose mothers had received...
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Source: Vaccine Weekly (2004-10-20)
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