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25/01/1957 Japanese physician and bacteriologist Kiyoshi Shiga dies

He became famous for the discovery of Shigella dysenteriae, the bacillus causing dysentery. He identified it in 1897, during a severe epidemic in which more than 90,000 cases were reported, with a mortality rate approaching 30%. The bacterium Shigella was thus named after him, as well as the Shiga toxin, which is produced by the bacterium.