by Roberto
Yersinia pestis. How immediate our reaction can be to the species name of this bacterium, making us conjure up images of pestilence. As its discoverer, Alexander Yersin, wrote in 1894 of an outbreak of bubonic plague in Hong Kong, this is the "bacille de la peste." (Working independently, Kitasato Shibasaburo also characterized the plague bacterium at nearly the exact same time.)
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