Extended spectrum beta-lactamases in Escherichia coli strains isolated from homemade white cheeses: prevalence and antibiotic susceptibility

被引：0
作者：
Seza Arslan
Fatma Özdemir
机构：
[1] Abant Izzet Baysal University,Department of Biology, Faculty of Arts and Sciences
来源：
World Journal of Microbiology and Biotechnology | 2008年 / 24卷
关键词：
Antimicrobial agent; ESBL; Resistance; White cheese;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The present study included 223 E. coli strains isolated from homemade white cheeses and was undertaken to determine the prevalence of extended spectrum β-lactamases (ESBL)-producing strains and antibiotic susceptibility. ESBL production was detected using three methods: the NCCLS disk diffusion test, the double disk synergy test and the NCCLS confirmatory test. By the disk diffusion test, 48% isolates were determined as potential ESBL producers. ESBL production by the double disk test and the phenotypic confirmatory test was found to be 16.1 and 9.9%, respectively. Susceptibility of all isolates against 16 antimicrobials was tested by the disk diffusion method. All strains were imipenem- and cefepime-susceptible. Susceptibility of E. coli to ceftazidime, ceftriaxon, cefotaxime and aztreonam was found to be 93.7, 96.4, 81.2, 90.6%, respectively. The least effective antibiotics were ampicillin with a rate of 68.6% and cefuroxime with a rate of 69.1%.
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页码：2361 / 2364
页数：3
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