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Surveillance of antibiotic susceptibility of Enterobacteriaceae isolated from urine samples collected from community patients in a large metropolitan area, 2010–2012

  • C. S. HORNER (a1) (a2), N. ABBERLEY (a1), M. DENTON (a1) (a2) and M. H. WILCOX (a1) (a2)
Summary
SUMMARY

Antibiotic susceptibilities of large cohorts of Enterobacteriaceae isolated from urine collected in the community are scarce. We report the susceptibilities of Enterobacteriaceae isolated from urine of non-selected community populations in a metropolitan area (Leeds and Bradford, UK) over 2 years. Isolates (n = 6614) were identified as follows: Escherichia coli (n = 5436), Klebsiella spp. (n = 525), Proteus mirabilis (n = 305), and 15 other species (n = 290); 58 isolates were unidentified. Ampicillin resistance was observed in 53% E. coli and 28% P. mirabilis; ⩾34% E. coli and P. mirabilis were non-susceptible to trimethoprim compared to 20% Klebsiella spp.; nitrofurantoin resistance was observed in 3% E. coli and 15% Klebsiella spp. The occurrence of extended-spectrum β-lactamases (ESBL) was low (6%), as was non-susceptibility to carbapenems, cefipime and tigecycline (<2%). Further surveillance is required to monitor this level of resistance and additional clinical studies are needed to understand the impact on the outcome of current empirical prescribing decisions.

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Corresponding author
* Author for correspondence: Dr C. S. Horner, Leeds Teaching Hospitals NHS Trust, Department of Microbiology, Old Medical School, Leeds General Infirmary, Leeds, UK. (Email: carolyne.horner@leedsth.nhs.uk)
References
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Epidemiology & Infection
  • ISSN: 0950-2688
  • EISSN: 1469-4409
  • URL: /core/journals/epidemiology-and-infection
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