What are Proteus species?

Updated: Mar 03, 2020
  • Author: Shirin A Mazumder, MD, FIDSA; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Proteus species are part of the Enterobacteriaceae family of gram-negative bacilli. The first isolates were reported and characterized by Hauser in the late 19th century. The genus is currently composed of Proteus mirabilis, Proteus vulgaris, Proteus penneri, Proteus hauseri, Proteus terrae, and Proteus cibarius.P mirabilis and P vulgaris account for most clinical Proteus isolates. Proteus organisms are implicated as serious causes of infections in humans, along with Escherichia, Klebsiella, Enterobacter, and Serratia species.


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