Franklin A. Neva followed by service with the US Navy at Naval Medical Research Unit-3 in Cairo, Egypt. He spent several years at Harvard University as a researcher. He became a professor at University of Pittsburgh, where he worked with Jonas Salk on a vaccine for polio. While at Pittsburgh, he also isolated ECHO 16, the virus responsible for Boston exanthem disease. This was the first description of that disease. Together with Thomas Weller, he isolated the Rubella virus in 1962. In 1964 he moved back to Harvard to head the Department of Tropical Public Health. In 1969 he joined the National Institutes
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