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 Merino Sabin Merino Sabin Merino Zuloaga (; ; born 4 January 1992), known simply as Sabin, is a Spanish professional footballer who plays for CD Leganés on loan from Athletic Bilbao mainly as a left winger. Born in Urduliz, Biscay, Basque Country, Sabin graduated from Danok Bat CF's youth setup after spells at Athletic Bilbao's Lezama and American team Javanon FC. In the summer of 2011 he returned to the "Lions", and made his debut as a senior with the farm team in Tercera División. On 21 June 2013, Sabin was promoted to the reserves in Segunda División B. On 29