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
Salk Institute for Biological Studies have directly influenced Kahn in his design. Ultimately, the Salk Institute's meaning can be interpreted as transcending function and physical place as a reflection of Western civilization's pursuit of truth through science. In 2014, the Getty Conservation Institute partnered with the Salk Institute to preserve the concrete and teak building which is, due to its coastal location, subject to the punishing rigors of a marine environment. Although the Salk Institute is not a degree-granting institution, it runs a graduate program together with the neighboring UCSD, and all Salk Institute professors receive adjunct appointments in the Division of Biological Sciences at