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Low frequency of antibiotic resistance among urine isolates of Escherichia coli in the community, despite a major hospital outbreak with Klebsiella pneumoniae producing CTX-M-15 in Uppsala County
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Klinisk bakteriologi)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm , UCR-Uppsala Clinical Research center.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Infectious Diseases.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Klinisk bakteriologi)
2010 (English)In: Scandinavian Journal of Infectious Diseases, ISSN 0036-5548, E-ISSN 1651-1980, Vol. 42, no 4, 243-248 p.Article in journal (Refereed) Published
Abstract [en]

A screening programme introduced during a major outbreak of a Klebsiella pneumoniae strain producing extended spectrum beta-lactamase (ESBL), indicated a dissemination of ESBL-producing Escherichia coli in the community. A total of 360 urine samples, yielding 205 isolates, were therefore collected from primary care patients with lower urinary tract infections (UTI) in Uppsala County. The susceptibility pattern of the isolates was investigated with the disk diffusion method. The majority of the positive cultures contained E. coli (76%). Of the members of the Enterobacteriaceae family, only 2 E. coli isolates were resistant to cefpodoxime, of which one produced ESBL. The antibiotic resistance for E. coli isolates was as follows: ampicillin 29.5%, trimethoprim 18.6%, nalidixic acid 7.7%, mecillinam 1.3%, nitrofurantoin 1.3%, and cefpodoxime 1.3%. Approximately 5% of the E. coli isolates showed a combined resistance to 3 or more antibiotic drugs. Negative cultures were common, especially in men, and it was obvious that there were difficulties with the definition of both uncomplicated and lower UTI. In conclusion, a dissemination of ESBL-producing E. coli in the primary care population of Uppsala County could not be confirmed when using urine samples. The antibiotic resistance in E. coli isolates was low overall, with the exception of ampicillin and trimethoprim.

Place, publisher, year, edition, pages
2010. Vol. 42, no 4, 243-248 p.
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-123910DOI: 10.3109/00365540903470655ISI: 000275470500001PubMedID: 20085420OAI: oai:DiVA.org:uu-123910DiVA: diva2:316263
Available from: 2010-04-30 Created: 2010-04-30 Last updated: 2017-12-12Bibliographically approved

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