Leptospirosis research by Sanarelli, 19th century. Illustrations of bacterial colonies cultivated from medical samples in the laboratory. At top are c
Leptospirosis research by Sanarelli, 19th century. Illustrations of bacterial colonies cultivated from medical samples in the laboratory. At top are colonies of Leptospira bacteria, with colonies of Escherichia coli across bottom (here, referred to with its former name of 'Coli communis'). This page is part of research carried out by Italian microbiologist Giuseppe Sanarelli (1864-1940). This is Plate V from Sanarelli's 'Etiologia y patogenia de la fiebre amarilla' (1897). This work, published in Montevideo, Uruguay, where Sanarelli worked from 1895 to 1898, is about the etiology (cause) of diseases then known as yellow fever, some of which are now known to be caused by other pathogens. Leptospira bacteria can cause severe icterohaemorrhagic leptospirosis (Weil disease), which is difficult to differentiate from yellow fever.
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