endotoxin

Yersinia pestis: Introduction and morphology

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yersinia pestis

Introduction Formerly known as Pasteurella pestis. Falls in family enterobacteriaceae. Discovered in Honkong in 1894 AD by Yersin and Kitasato. Important medical species are Y.pestis, Y. pseudotuberculosis and Y. enterocolitica. Y. pestis responsible for causing plague whereas Y. pseudotuberculosis is a primary pathogen of rodents. Similarly, Y. enterocolitica causes enteric and systemic diseases. These diseases … Read more

Differences between exotoxin and endotoxin

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S.N   Exotoxin Endotoxin 1. It is released outside the cell. It is present inside the cell membrane and released only when the cell lyse. 2.  It is proteinous in nature. It is lipoproteinous  in nature. 3  It is heat labile generally. It is heat stable generally. 4 It is mostly secreted by gram positive … Read more