Characterization of high-level fluoroquinolone resistance in Escherichia coli O78:K80 isolated from turkeys

被引:35
作者
Giraud, E [1 ]
Leroy-Sétrin, S [1 ]
Flaujac, G [1 ]
Cloeckaert, A [1 ]
Dho-Moulin, M [1 ]
Chaslus-Dancla, E [1 ]
机构
[1] INRA, Ctr Rech Tours Nouzilly, Stn Pathol Aviare & Parasitol, F-37380 Monnaie, France
关键词
D O I
10.1093/jac/47.3.341
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Fluoroquinolone resistance was characterized in Escherichia coli O78:K80 isolated from diseased turkeys. The level of resistance to fluoroquinolones of the isolates appeared closely correlated with substitutions in GyrA and ParC, but not with the production of the AcrAB efflux pump. Among isolates highly resistant to ciprofloxacin (MIC 8 mg/L) and harbouring identical substitutions (two in GyrA and one in ParC), two close but distinguishable ribotypes were identified. This indicated that at least two independent selection events may have occurred.
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页码:341 / 343
页数:3
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