What is the prevalence of Proteus infections in the US?

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

The genitourinary tract is the site of disease responsible for gram-negative bacteremia in approximately 35% of patients. In previously healthy outpatients, E coli is by far the most often implicated cause of UTIs. In contrast, individuals with multiple prior episodes of UTI, multiple antibiotic treatments, urinary tract obstruction, or infection developing after instrumentation frequently become infected with Proteus bacteria or other bacteria such as Enterobacter, Klebsiella, Serratia, and Acinetobacter.

Bacteriuria occurs in 10%-15% of hospitalized patients with indwelling catheters. The risk of infection is 3%-5% per day of catheterization.

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