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News of the vaccine’s invention immediately spread around the world and scientists from all over the country flocked to the United States. A major contributor to the invention of the last vaccine made by Soviet scientists was Mikhail Chumakov and Anatoly Smorodintsev. Writing because murder is wrong poster. The collaborative work of Soviet and American scientists took place despite the tension of the Cold War. In 1958, Dr. Albert Sabin at the City of Cincinnati Children’s Hospital concluded that when the virus was grown at low temperatures, those non-pathogenic strains became the winner of natural selection. If such a virus enters the stomach, it will begin to multiply. This is a “live virus” that doesn’t cause disease, and our antibodies perceive it to be the common poliovirus.