Max Theiler working on yellow fever. In 1926, they disproved Hideyo Noguchi's hypothesis that yellow fever was caused by the bacterium "Leptospira icteroides." In 1928, the year after the disease was identified conclusively as a virus, they showed that the African and South American viruses are immunologically identical. (This followed Adrian Stokes' inducing yellow fever in rhesus macaques from India). In the course of this research, Theiler contracted yellow fever, but survived and developed immunity. In 1930, Theiler moved to the Rockefeller Foundation in New York, where he later became director of the Virus Laboratory. He was professor of epidemiology and public
Nobel Peace Prize the prize, profoundly influenced his decision to include peace as a category. Some Nobel scholars suggest it was Nobel's way to compensate for developing destructive forces. His inventions included dynamite and ballistite, both of which were used violently during his lifetime. Ballistite was used in war and the Irish Republican Brotherhood, an Irish nationalist organization, carried out dynamite attacks in the 1880s. Nobel was also instrumental in turning Bofors from an iron and steel producer into an armaments company. It is unclear why Nobel wished the Peace Prize to be administered in Norway, which was ruled in union with Sweden