Department of Bacteriology, National Institute of Public Health-National Institute of Hygiene, Warsaw, Poland.
Antimicrob Agents Chemother. 2011 Jan;55(1):443-6. doi: 10.1128/AAC.00386-10. Epub 2010 Oct 18.
A Klebsiella pneumoniae epidemic strain that coproduced carbapenemase KPC-2 (K. pneumoniae carbapenemase 2) and 16S rRNA methylase ArmA has emerged in Poland. Four nonduplicate isolates from patients in a hospital in Warsaw, Poland, were found to carry the bla(KPC-2) and armA genes on ca. 50-kb and 90-kb plasmids, respectively. Tn4401 with a 100-bp deletion in the variable region was detected in all the isolates. XbaI pulsed-field gel electrophoresis (PFGE) revealed 93.2% similarity of the isolates. All the isolates were resistant to carbapenems and 4,6-disubstituted 2-deoxystreptamines.
波兰出现了一株同时产生碳青霉烯酶 KPC-2(肺炎克雷伯菌碳青霉烯酶 2)和 16S rRNA 甲基酶 ArmA 的肺炎克雷伯氏菌流行株。从波兰华沙一家医院的 4 名患者的 4 个非重复分离株中发现,bla(KPC-2)和 armA 基因分别位于约 50kb 和 90kb 的质粒上。在所有分离株中均检测到了带有 100bp 缺失的 Tn4401。XbaI 脉冲场凝胶电泳(PFGE)显示分离株的相似度为 93.2%。所有分离株均对碳青霉烯类药物和 4,6-二取代 2-去氧链霉胺具有抗性。