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Beyond Contaminated Vaccines

A recent article in the Children’s Health Defense newsletter tells the shocking story of “How a Cancer-Causing Monkey Virus Ended Up in Polio Vaccines.” 

In the 1950s and 1960s, research conducted in the search for a polio vaccine involved “passaging” the poliovirus through monkeys — a process that led to some of the vaccines becoming contaminated with a cancer-causing simian virus. 

Learn more: How a Cancer-Causing Monkey Virus Ended Up in Polio Vaccines