Cold War tensions and the polio vaccine was the first polio vaccine to receive approval of the U.S. government, and was used until 1961 in America, when the Sabin vaccine was recommended to replace it. Albert Sabin, a virologist who publicly disagreed with Salk and his killed vaccine, worked on creating a vaccine with live, attenuated vaccines. Despite Cold War tensions, in January, 1956 Mikhail Chumakov, the director of Moscow's Polio Research Institute, his wife and colleague Marina Voroshilova, and Anatoli Smorodentsev, traveled to the U.S. in order to study the Salk vaccine and visited the laboratory of Albert Sabin. With the clearance of the FBI, Sabin
Sabin Vaccine Institute "childhood cognitive development among the poor, thereby reinforcing poverty." Sabin works with experts and organizations from around the world to advance knowledge of both infectious diseases and the vaccines that can prevent them. Through the International Association of Immunization Managers (IAIM) Network, Sabin arranges international forums to improve the success rates of immunization programs. Sabin serves as the Secretariat for the Coalition against Typhoid whose mission is to raise awareness of Typhoid and Salmonellosis. First awarded in 1994, the Albert B. Sabin Gold Medal is presented by Sabin each year to one or more persons who have made a major