Prof. Dr. Otto Naegeli was a Swiss hematologist. He was the brother of Oskar Naegeli

Oskar Naegeli

Prof. Dr. Oskar Naegeli , was a Swiss dermatologist and chess master. He represented Switzerland at the Chess Olympiads in 1927, 1928, 1931 and 1935, as well as at the unofficial Olympiad in 1936 at Munich.Naegeli won twice Swiss Chess Championship...

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He is best known for refining the classification of leukemia

Leukemia

Leukemia or leukaemia is a type of cancer of the blood or bone marrow characterized by an abnormal increase of immature white blood cells called "blasts". Leukemia is a broad term covering a spectrum of diseases...

 by dividing them into myelogenous and lymphocytic classes. He also made the observation that many individuals are infected with tuberculosis and do not develop the disease, which he attributed to differences in individual immune systems. While initially controversial, this was later demonstrated by others.

Every two years the Otto Naegeli Prize for the promotion of medical research is awarded to a scientist working in Switzerland who has made outstanding contributions to biomedical and/or clinical research and is likely to continue doing so. The prize is
awarded by the Zurich

Zürich

Zurich is the largest city in Switzerland and the capital of the canton of Zurich. It is located in central Switzerland at the northwestern tip of Lake Zurich...

based Bonizzi Theler Foundation and is named in honor of Otto Naegeli.