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
Jonas Salk the University of Michigan. Francis had recently joined the faculty of the medical school after working for the Rockefeller Foundation, where he had discovered the type B influenza virus. According to Bookchin, "the two-month stint in Francis's lab was Salk's first introduction to the world of virology—and he was hooked." After graduating from medical school, Salk began his residency at New York's prestigious Mount Sinai Hospital, where he again worked in Francis's laboratory. In 1947, Salk became ambitious for his own lab and was granted one at the University of Pittsburgh School of Medicine, but the lab was smaller than