Alexandre Yersin

Uncommon card · No. 194170

Alexandre Émile John Yersin (22 September 1863 – 1 March 1943) was a Swiss-French physician and bacteriologist. He is remembered for his work as a pioneer in microbiology and immunology. Yersin is the co-discoverer of both the Diphtheria and Tetanus toxins (1890 with Émile Roux) and of the bacillus responsible for the bubonic plague (1894, with Kitasato Shibasaburō). The bacteria was later named in his honour: Yersinia pestis. Yersin also demonstrated for the first time that the same bacillus was present in the rodent as well as in the human disease, thus underlining the possible means of transmission.

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