Between 1954 and 1963 close to 98 million americans received polio vaccinations contaminated with a carcinogenic monkey virus now known as sv40 the government downplayed the incident and it was. Between 1954 and 1963 close to 98 million americans received polio vaccinations contaminated with a carcinogenic monkey virus now known as sv40 the government downplayed the incident and it was generally accepted that although oncogenic to lab animals sv40 was harmless to humans but now sv40 is showing up in human cancers and prominent researchers are demanding a serious public health response to this forgotten polio vaccine contaminant a gripping medical detective story. Between 1954 and 1963 close to 98 million americans received polio vaccinations contaminated with a carcinogenic monkey virus now known as sv40 the government downplayed the incident and it was generally accepted that although oncogenic to lab animals sv40 was harmless to humans but now sv40 is showing up in human cancers and prominent researchers are demanding a serious public health response to this forgotten polio vaccine contaminant a gripping medical detective story. Buy the virus and the vaccine contaminated vaccine deadly cancers and government neglect by debbie bookchin jim schumacher online at alibris we have new and used copies available in 1 editions starting at 1662 shop now. When the sv40 virus was discovered in 1960 studies soon showed it caused an array of cancers and that it had contaminated almost all of both vaccines but the nations polio program was deemed too important to interrupt and this information was hidden from the public federal health officials refused to recall the millions of doses of the contaminated vaccine that already had been released