| Isamu Tajiri | |
| Birth Date: | May 1902 |
| Birth Place: | Tokyo |
| Death Date: | 1966 |
| Known For: | acute infiltration of Tajiri in leprosy |
| Occupation: | Physician and Director of a leper hospital Kikuchi Keifuen Sanatorium, Kumamoto, Japan |
| Nationality: | Japanese |
was a Japanese physician specializing in leprosy. He worked at Nagashima Aiseien Sanatorium, Kikuchi Keifuen Sanatorium and Tama Zenshoen Sanatorium. In 1955, he proposed "acute infiltration" of Tajiri in leprosy.[1]
He was born in Tokyo in 1902, and graduated from Chiba Medical School in 1930. In the same year he started working at Tama Zenshoen Sanatorium. In 1931, he went to Nagashima Aiseien Sanatorium. He became Ph.D. for his studies on leprosy of the respiratory system. In 1947 he went to Tama Zenshoen Sanatorium. Between 1958 and 1963, he was the director of Kikuchi Keifuen Sanatorium, and later he worked at Tama Zenshoen Sanatorium. He died in 1966.
In Nagashima Aiseien Sanatorium, he was not only a good clinician, but also helped Kensuke Mitsuda when various problems arose. He became the director of Kikuchi Keifuen Sanatorium after Matsuki Miyazaki. Tajiri started reducing the number of in-patients after the so-called "no-leprosy patient in our prefecture" movement.