Sahachiro Hata
Japanese bacteriologist (1873-1938)

Sahachirō Hata (秦 佐八郎, Hata Sahachirō; March 23, 1873 – November 22, 1938) was a prominent Japanese bacteriologist who researched the bubonic plague under Kitasato Shibasaburō and assisted in developing the antisyphilitic drug arsphenamine in 1909 in the laboratory of Paul Ehrlich.
Hata received three unsuccessful nominations for the Nobel Prize, one from Swiss surgeon Emil Kocher for Chemistry in 1911 and two by Japanese colleagues Hayazo Ito and G Osawa for Physiology or Medicine in 1912 and 1913, respectively.
Early life
Hata was born in Tsumo Village, Shimane prefecture (now part of Masuda City) as the eighth son of the Yamane family. At the age of 14, he was adopted by the Hata family, whose male members were doctors from generation to generation. Hata completed his medical education in Okayama at the Third Higher School of Medicine (now Okayama University School of Medicine). In 1897, he became an assistant at Okayama Prefectural Hospital where he learned internal medicine from Zenjiro Inoue and biochemistry from Torasaburo Araki.
Plague research
Sahachiro Hata researched bubonic plague with Japanese bacteriologist and physician, Kitasato Shibasaburō, who co-discovered the infectious agent, a bacterium now called Yersinia pestis. Hata worked as an assistant for Kitasato and conducted research into the prevention of plague and other epidemic diseases. Hata helped formulate the "Communicable Disease Prevention Law," which was enacted in 1897 as the first legal framework for disease control in Japan. Among other things the law mandated reporting of certain disease to a public health agency in service of their control.
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