Tama Zenshōen Sanatorium, or National Sanatorium Tama Zenshōen, is a sanatorium for leprosy or ex-leprosy patients situated in Higashimurayama, Tokyo, Japan starting in 1909. History Background The Japanese Government promulgated the first leprosy prevention law on March 19, 1907, but it became effective on April 1, 1909 because of financial difficulties. Japan was divided into 5 areas, and the first area included Tokyo-fu, Kanagawa Prefecture, Niigata Prefecture, Saitama Prefecture, Gunma Prefe…