Medicine and infection research
Born in what is now Masuda, Shimane, Hata completed medical studies in Okayama in 1895 and joined the Institute for Infectious Diseases in 1898 to investigate plague. He studied immunology in Berlin from 1907 and moved to Ehrlich’s Frankfurt institute in 1909.
References: [1]
Re-examining compound 606
Ehrlich’s team had synthesized and screened many arsenical compounds. Hata retested compound 606 using infected rabbits and demonstrated its antisyphilitic activity. The resulting drug came to attention as Salvarsan in 1910. His work linked chemical screening with experimental infection models.
Research after returning to Japan
Hata helped establish the Kitasato Institute in 1914 and collaborated with Umetaro Suzuki on Japanese production of Salvarsan in 1915. He became a professor at Keio’s medical faculty in 1920 and continued bacteriological and chemotherapeutic research until his death in 1938.
References: [1]