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Belgian bacteriologist Émile van Ermengem (1851-1932)

Belgian bacteriologist Émile van Ermengem discovered the bacterium that causes botulism, later named Clostridium botulinum. (Source: Van Loo, Florimond, Portret Van Emile-Pierre Van Ermengem [1851-1932], Hoogleraar Aan De Faculteit Geneeskunde Te Gent. Gand: Florimond Van Loo, 1897. Creative Commons Attribution-ShareAlike [CC BY-SA 4.0] license, creativecommons.org/licenses/by/4.0.)