Genomic Epidemiology of Global Carbapenemase-Producing Enterobacter spp., 2008-2014.

Genomic Epidemiology of Global Carbapenemase-Producing Enterobacter spp., 2008-2014.
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DOI:
10.3201/eid2406.171648
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发表时间:
2018-06
影响因子:
11.8
通讯作者:
Pitout JDD
Pitout JDD
中科院分区:
医学2区
文献类型:
--
作者:
Peirano G;Matsumura Y;Adams MD;Bradford P;Motyl M;Chen L;Kreiswirth BN;Pitout JDD

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我们对170株临床产碳青霉烯酶肠杆菌进行了全基因组测序。2008-2014年期间在全球收集的分离株。最常见的碳青霉烯酶是Vim,其次是新德里金属β-内酰胺酶(NDM)、肺炎克雷伯菌碳青霉烯酶、苯唑西林48和IMP。xiangfangensis和E.霍氏亚种steigerwaltii)和4个在ST 114和ST 90内具有不同进化枝的全局克隆(序列类型[ST] 114、ST 93、ST 90和ST 78)。在希腊、危地马拉、意大利、西班牙、塞尔维亚和越南的同一ST内或不同ST之间的不同机构中,围绕碳青霉烯酶基因的特定遗传结构在当地传播。我们发现了一个共同的NDM遗传结构(NDM-GE-U.S.),先前在来自肺炎克雷伯氏菌ATCC BAA-214的pNDM-U.S.上描述的,在从跨越4大洲的6个国家获得的14个不同克隆中。我们的研究强调了使用全基因组测序监测计划在深入了解产碳青霉烯酶肠杆菌属的分子流行病学方面的重要性。
We performed whole-genome sequencing on 170 clinical carbapenemase-producing Enterobacter spp. isolates collected globally during 2008–2014. The most common carbapenemase was VIM, followed by New Delhi metallo-β-lactamase (NDM), Klebsiella pneumoniae carbapenemase, oxacillin 48, and IMP. The isolates were of predominantly 2 species (E. xiangfangensis and E. hormaechei subsp. steigerwaltii) and 4 global clones (sequence type [ST] 114, ST93, ST90, and ST78) with different clades within ST114 and ST90. Particular genetic structures surrounding carbapenemase genes were circulating locally in various institutions within the same or between different STs in Greece, Guatemala, Italy, Spain, Serbia, and Vietnam. We found a common NDM genetic structure (NDM-GE-U.S.), previously described on pNDM-U.S. from Klebsiella pneumoniae ATCC BAA-214, in 14 different clones obtained from 6 countries spanning 4 continents. Our study highlights the importance of surveillance programs using whole-genome sequencing in providing insight into the molecular epidemiology of carbapenemase-producing Enterobacter spp.
碳青霉酶产生肠杆菌属的全面基因组分析:对系统发育,种群结构和耐药机制的新见解。
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