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 Africa, and the Americas. Sabin is currently working on multiple vaccines for humans including vaccines for Hookworm infection ("Na"-GST-1, "Na"-APR-1), Schistosomiasis ("Sm"-TSP-2), Chagas disease ("Tc"24, TSA-1), Leishmaniasis ("Ld"-NH36, PdSP15), Severe acute respiratory syndrome (SARS)/Middle East respiratory syndrome (MERS) (Pan-β-CoVax), Soil-transmitted helminthiasis (STH), and Onchocerciasis (Ov-"103", Ov-"RAL-2"). In 2006, Sabin co-founded the Global Network for Neglected Tropical Diseases in order "to raise the awareness, political will and funding necessary to control and eliminate the most common NTDs." Through its work on NTDs, Sabin hopes to reduce poverty caused by these diseases as many of them have been shown to adversely affect