Born 7 Feb 1871; died 25 Jan 1957 at age 85.

Japanese #bacteriologist who discovered (1897) the #dysentery #bacillus #Shigella, named after him. Shigellosis is the infectious disease caused by this group of #bacteria leading to #diarrhea, #fever, #stomach #cramps and possible #hospitalization. He also developed #dysentery #antiserum (1900). After appointment (1899) and serving a short time as director of the Institute of Infectious Diseases, Tokyo, he spent until 1903 working in Germany on the #chemotherapy of #trypanosomiasis (sleeping sickness) with Paul Ehrlich. He returned to Japan and continued his earlier association in research with Kitasato. In 1912, he moved to work again with Ehrlich in Frankfurt, this time focussing on #tuberculosis. In his later life he also investigated #leprosy and #beriberi.