was a Japanese dermatologist. He was the first chief doctor at Sotojima Hoyoen Sanatorium (1909–1923) and wrote many papers on leprosy

Leprosy

Leprosy or Hansen's disease is a chronic disease caused by the bacteria Mycobacterium leprae and Mycobacterium lepromatosis. Named after physician Gerhard Armauer Hansen, leprosy is primarily a granulomatous disease of the peripheral nerves and mucosa of the upper respiratory tract; skin lesions...

. Sotojima Hoyoen was a public leprosy sanatorium present in Osaka Prefecture

Osaka Prefecture

is a prefecture located in the Kansai region on Honshū, the main island of Japan. The capital is the city of Osaka. It is the center of Osaka-Kobe-Kyoto area.- History :...

 between 1909 and 1934.

Life

He was born in 1871 in Kyoto Prefecture

Kyoto Prefecture

is a prefecture of Japan located in the Kansai region of the island of Honshu. The capital is the city of Kyoto.- History :Until the Meiji Restoration, the area of Kyoto prefecture was known as Yamashiro....

. After qualification as a pharmacist in 1890, he studied at Saisei Gakusha, a private medical school and was qualified as a physician in 1892. He worked in Toyama Prefecture

Toyama Prefecture

is a prefecture of Japan located in the Hokuriku region on Honshū island. The capital is the city of Toyama.Toyama is the leading industrial prefecture on the Japan Sea coast, and has the industrial advantage of cheap electricity due to abundant water resources....

, and Osaka Prefecture

Osaka Prefecture

is a prefecture located in the Kansai region on Honshū, the main island of Japan. The capital is the city of Osaka. It is the center of Osaka-Kobe-Kyoto area.- History :...

. In 1897, he studied pathology at University of Tokyo

University of Tokyo

, abbreviated as , is a major research university located in Tokyo, Japan. The University has 10 faculties with a total of around 30,000 students, 2,100 of whom are foreign. Its five campuses are in Hongō, Komaba, Kashiwa, Shirokane and Nakano. It is considered to be the most prestigious university...

 under Professor Yamagiwa. In September 1898, he went to the Yoikuin Hospital Tokyo

Tokyo

, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

, two months after Kensuke Mitsuda

Kensuke Mitsuda

was a Japanese leprologist and director of the Tama Zenshoen Sanatorium and the National Sanatorum Nagashima Aiseien. He had been at the frontier of leprosy policy of Japan. He was given the Order of Cultural Merits and Damien-Dutton Award...

. In 1903, he taught pathology, forensic medicine and psychiatry at Osaka

Osaka

is a city in the Kansai region of Japan's main island of Honshu, a designated city under the Local Autonomy Law, the capital city of Osaka Prefecture and also the biggest part of Keihanshin area, which is represented by three major cities of Japan, Kyoto, Osaka and Kobe...

Higher Medical school. In 1909, he became the chief doctor at the recommendation of the school. In October 1910, he published his studies on immunology in a German journal and became a Ph. D. In July, 1923, he retired from the sanatorium, and died in Feb. 1944.

Papers

• Sugai T, Mononobe K: Relationships between leprosy bacilli and insects. Hifuka Hinyoukika Zasshi, 1909, 1910.
• Sugai T, Mabuchi H: Statistical observations on 200 patients of leprosy. Okayama Ishi, 1910.
  • Infections in families were 27.5%, cited in Nihon Hifuka Zensho.1954.
• Sugai T, Mononob K: Hematological studies in newborn babies and leprosy bacilli in the blood. Osaka Ishi, 1911.
• Sugai T, Monnobe K: Studies of infection in family members, Tokyo Iji Shinshi, 1912.
  • Cited in History of leprosy in Japan, p :Among 95 persons of family infection, father-side infection was 64 persons, mother-side infection was 25 persons and the remaining 6 persons were from both sides.
• Sugai T: Susceptibility of leprosy in animals. Tokyo Igakushi, 1902, 1903, 1904, 1907, 1912.
• Sugai T: Agglutination and complement-fixation reactions in leprosy. Osaka and Tokyo Igakushi, 1907, 1907, 1910, 1912.
• Sugai T, Mabushi H: Leprosy and erysipelas. Okayama Ishi, 1910.
• Sugai T, Masaki M: Leprosy and eye diseases. Hifuka Hinyokika Zasshi, 1914.
• Sugai T, Masaki M: Leprosy, tuberculosis and lung cancer. Osaka Igakushi, 1914.
• Sugai T, Mononobe K, Mabuchi I: Serum treatment of leprosy. Osaka Ishi, 1910.
• Sugai T, Kumagai T: Leprosy baculli in milk. Tokyo Iji, 1915.
• Sugai T, Miyahara A: Leprosy bacilli in amniotic fluid. Igaku Chuoshi, 1915.
• Sugai T, Kawabata K: Fate of leprosy bacilli in the digestive system of animals. Nihon Shokakishi, 1918.
• Sugai T: Leprosy and maggots. Hifuka Hinyokika Zasshi, 1922.
• Sugai T: Leprosy nodules in the ventricle of the brain. Igaku Chuoshi, 1915.
• Sugai T, Kagawa H: Leprosy and lecithin. Igaku Chuoshi, 1913.
• Sugai T: Leprosy associated with trachoma and conjunctival tuberuculosis. Tokyo Iji, 1913.
• Sugai T: Treatment of leprosy(book). Sanshusha, Tokyo, 1914.
• Sugai T: Oral leprosy. Hifuka Hinyokika Zasshi, 1921.
• Sugai T: Chemical treatment of leprosy and tuberculosis. Tokyo Ijishi, 1916.
• Sugai T: Effects of kuupper, thianyl and thiane kali on tuberculosis and leprosy. Hifuka Hinyokika Zasshi, 1916.
• Sugai T: Chemical treatment of leprosy and tuberculosis. Experimental and clinical trials. Nihon Biseibutsugakkaishi, 1917.
• Sugai T: Studies on my treatment method(Kupper, thianyl and thiane kali) for tuberculosis and leprosy. Congratulatory collection of works for 25 years after graduation of Professor Dohi. 1917.
• Sugai T:Reminiscences at Sotojima Sanatorium. Koshu Eiseigaku Zasshi, 41, 7, 1924.