Kiyoshi Shiga, Japanese physician and bacteriologist (b. 1871)
Kiyoshi Shiga (志賀 潔, Shiga Kiyoshi, February 7, 1871 – January 25, 1957) was a Japanese physician and bacteriologist. He had a well-rounded education and career that lead to many scientific discoveries. In 1897, Shiga was credited with the discovery and identification of the Shigella dysenteriae microorganism which causes dysentery, and the Shiga toxin which is produced by the bacteria. He conducted research on other diseases such as tuberculosis and trypanosomiasis, and made many advancements in bacteriology and immunology.