Global emergence of a hypervirulent carbapenem-resistant Escherichia coli ST410 clone.

Global emergence of a hypervirulent carbapenem-resistant Escherichia coli ST410 clone.
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DOI:
10.1038/s41467-023-43854-3
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发表时间:
2024-01-12
影响因子:
16.6
通讯作者:
Zhuo, Chao
Zhuo, Chao
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Ba, Xiaoliang;Guo, Yingyi;Moran, Robert A.;Doughty, Emma L.;Liu, Baomo;Yao, Likang;Li, Jiahui;He, Nanhao;Shen, Siquan;Li, Yang;van Schaik, Willem;McNally, Alan;Holmes, Mark A.;Zhuo, Chao

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耐碳青霉烯类大肠杆菌 (CREC) ST410 最近已成为一个主要的全球健康问题。在这里,我们报告了 2017 年至 2021 年间中国医院 CREC 患病率的变化,其中 ST410 成为最常见的孤立序列类型。基因组分析发现了一种高毒力的 CREC ST410 克隆 B5/H24RxC,它在一家儿童医院引起了两次不同的疫情爆发。它可能是从2006年之前鉴定的B4/H24RxC中出现的,并于2015年至2021年在其他十个国家分离出来。与B4/H24RxC相比,B5/H24RxC缺乏携带blaOXA-181的X3质粒,但携带含有blaNDM-5的F型质粒。大多数B5/H24RxC还携带高致病性岛和新型O抗原基因簇。我们发现 B5/H24RxC 在体外生长更快,在体内毒性更强。这种新出现但已在全球传播的高毒力 CREC 克隆的鉴定突显了 ST410 正在朝着增强耐药性和毒力方向进化。在这项工作中,作者鉴定了一种高毒力耐碳青霉烯类大肠杆菌 ST410 克隆,它携带高致病性岛和 O 抗原基因簇。研究结果强调了 ST410 正在朝着增强耐药性和毒力方向发展。
Carbapenem-resistant Escherichia coli (CREC) ST410 has recently emerged as a major global health problem. Here, we report a shift in CREC prevalence in Chinese hospitals between 2017 and 2021 with ST410 becoming the most commonly isolated sequence type. Genomic analysis identifies a hypervirulent CREC ST410 clone, B5/H24RxC, which caused two separate outbreaks in a children’s hospital. It may have emerged from the previously characterised B4/H24RxC in 2006 and has been isolated in ten other countries from 2015 to 2021. Compared with B4/H24RxC, B5/H24RxC lacks the blaOXA-181-bearing X3 plasmid, but carries a F-type plasmid containing blaNDM-5. Most of B5/H24RxC also carry a high pathogenicity island and a novel O-antigen gene cluster. We find that B5/H24RxC grew faster in vitro and is more virulent in vivo. The identification of this newly emerged but already globally disseminated hypervirulent CREC clone, highlights the ongoing evolution of ST410 towards increased resistance and virulence. In this work, the authors identified a hypervirulent carbapenem-resistant Escherichia coli ST410 clone which carries a high pathogenicity island and an O-antigen gene cluster. The findings highlight the ongoing evolution of ST410 towards increased resistance and virulence.
DOI: 10.1093/jac/dkac329
发表时间: 2022-10-07
影响因子: 5.2
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影响因子: --
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影响因子: 5.2
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影响因子: 3.1
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