Henry F. Vaughan organizations. Among the breakthroughs in disease control during his deanship, the public health school contributed through the development of the first influenza vaccine by Dr. Thomas Francis Jr. and the polio vaccine by Dr. Jonas Salk in 1954. Vaughan was heavily involved with the construction of the Public Health Building. He was also able to attain Nathan Sinai, Thomas Francis, and Kenneth Easlick as faculties who are highly regarded in the field of public health to establish a real competence in health services organization and epidemiology. By the end of retirement in 1960, Vaughan created a school that is the
Cold War tensions and the polio vaccine flew to Leningrad in June, 1956. As a result of a cooperation of Sabin and Chumakov in Leningrad, Sabin was able to test his attenuated vaccine when funding in America was declined. While Sabin was working behind the Iron Curtain, the Sabin-Chumakov vaccine was determined to be safe and effective. Cold War tensions caused Western scientists to refuse the reports from the Russians about the effectiveness of the Sabin vaccine. However, mass vaccinations of Sabin's vaccine spread throughout Eastern Europe from 1960–1963. Just as some Soviet virologists did not trust the Western Salk vaccine, Americans had similar reservations about the