Fluoroquinolone-Resistant Urinary Isolates of Escherichia coli from Outpatients Are Frequently Multidrug Resistant: Results from the NorthAmerican Urinary Tract Infection Collaborative Alliance-QuinoloneResistance Study

ABSTRACT Ciprofloxacin-resistant Escherichia coli isolates ( n = 1,858) from outpatient midstream urine specimens at 40 North American clinical laboratories in 2004 to 2005 were frequently resistant to ampicillin (79.8% of isolates) and trimethoprim-sulfamethoxazole (66.5%); concurrent resistance to...

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Published inAntimicrobial agents and chemotherapy Vol. 50; no. 6; pp. 2251 - 2254
Main Authors Karlowsky, James A., Hoban, Daryl J., DeCorby, Melanie R., Laing, Nancy M., Zhanel, George G.
Format Journal Article
LanguageEnglish
Published 01.06.2006
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Summary:ABSTRACT Ciprofloxacin-resistant Escherichia coli isolates ( n = 1,858) from outpatient midstream urine specimens at 40 North American clinical laboratories in 2004 to 2005 were frequently resistant to ampicillin (79.8% of isolates) and trimethoprim-sulfamethoxazole (66.5%); concurrent resistance to cefdinir (9.0%) or nitrofurantoin (4.0%) was less common. Only 10.8% of isolates were resistant to ciprofloxacin alone. Fluoroquinolone-resistant isolates of E. coli from urine were frequently multidrug resistant.
ISSN:0066-4804
1098-6596
DOI:10.1128/AAC.00123-06