Born into a samurai family in Sendai; he was later adopted into his mother's family, the Shiga.
He graduated in medicine from Tokyo Imperial University and joined Kitasato Shibasaburō's institute.
He discovered the bacterium causing dysentery, which was killing many people; its scientific name, Shigella, bears his name.
He studied in Germany under Paul Ehrlich, researching chemical cures for disease.
He returned to Japan and continued his research.
He became head of a medical school in Keijō (Seoul), Korea, and later president of Keijō Imperial University.
He received the Order of Culture.
He died in Miyagi Prefecture.
Ozaki KōyōYokoyama TaikanAkiyama SaneyukiKitamura TokokuKunikida DoppoKōtoku ShūsuiHiguchi IchiyōShimazaki Tōson
People of the Meiji period ・ People by period
Based on facts found in textbooks and biographies. Uncertain points are marked as such.