Fumio Hayashi (doctor)

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Fumio Hayashi (林 文雄, Hayashi Fumio, November 26, 1900 – July 18, 1947) was a Japanese physician and leprologist. He worked in Tama Zenshoen Sanatorium, Nagashima Aiseien Sanatorium, Hoshizuka Keiaien Sanatorium and Ooshima Seishoen Sanatorium. He helped with Kensuke Mitsuda, and completed the first lepromin test or Mitsuda skin test.

Fumio Hayashi
Born November 26, 1900
Sapporo, Hokkaido
Died July 18, 1947
Nationality Japan
Occupation Physician, Director of leper hospitals
Known for Completion of lepromin reaction or Mitsuda reaction



  • The skin reaction in leprosy, ⅠⅡⅢ, Tokyo Iji Shinshi, 2661, On Feb 15, 1930.
  • The course of leprosy and the Mitsuda skin test. Tokyo Iji Shinshi, 2737,1931.
  • The course of patients, whose Mitsuda skin tests were problematic 10 years ago. Tokyo Iji Shinshi, 3156, 1939.
  • Personal view on the classification of leprosy. Repura 14, 3, May, 1943.
  • Mitsuda's reaction, Nisshin Igaku 33,3,1943.
  • An around-the-world trip of leprosy institutions. (Book)
  • The history of leprosy on Nauru. Rinsho Igaku, 28,10,1944.
  • Mitsuda's skin reaction in leprosy. Hayashi F. Int J Lepr 1, 31-38,1933.

Lepromin test[edit]

  • Kensuke Mitsuda wrote in 1919 his first paper on lepromin test, also called Mitsuda's skin test later.[1] But he regarded himself a pathologist and not an immunologist, so, he wanted other researchers of leprosy who came under him to complete it. Among other researchers, Fumio Hayashi completed it. Hayashi read a paper on it at a leprosy conference at Bangkok. Masao Ota, a dermatologist who also studied leprosy, was very much impressed by the paper, and tried to publish International Journal of Leprosy. Hayashi's paper was in its first issue.


  • Papers on leprosy. No 4. Papers by Fumio Hayashi(1951) Okayama. (Hayashi's 12 papers are included)


  1. ^ The value of a skin test with the emulsion of nodules of lerposy(1919), Kensuke Mitsuda, Nihon Hifuka Hinyokika Gakkai Zasshi, 19,697-708.