Poirel Laurent, Pitout Johann D D, Calvo Lucy, Rodriguez-Martinez Jose-Manuel, Church Deirdre, Nordmann Patrice
Service de Bactériologie-Virologie, Hôpital de Bicêtre, Faculté de Médecine Paris-Sud, Université Paris XI, 94275 Le Kremlin-Bicêtre cedex, France.
Antimicrob Agents Chemother. 2006 Apr;50(4):1525-7. doi: 10.1128/AAC.50.4.1525-1527.2006.
A ciprofloxacin-resistant Escherichia coli isolate, isolate 1B, was obtained from a urinary specimen of a Canadian patient treated with norfloxacin for infection due to a ciprofloxacin-susceptible isolate, isolate 1A. Both isolates harbored a plasmid-encoded sul1-type integron with qnrA1 and blaVEB-1 genes. Isolate 1B had amino acid substitutions in gyrase and topoisomerase.
从一名加拿大患者的尿液样本中分离出一株对环丙沙星耐药的大肠杆菌,即分离株1B,该患者曾因感染对环丙沙星敏感的分离株1A而接受诺氟沙星治疗。这两株分离株都含有一个携带qnrA1和blaVEB - 1基因的质粒编码sul1型整合子。分离株1B在gyrase和拓扑异构酶中存在氨基酸替换。