Emerg Infect Dis. 2022 May;28(5):924-31. doi: 10.3201/eid2805.212535.
We describe the global molecular epidemiology of 229 carbapenemase-producing Escherichia coli in 36 countries during 2015-2017. Common carbapenemases were oxacillinase (OXA) 181 (23%), New Delhi metallo-β-lactamase (NDM) 5 (20%), OXA-48 (17%), Klebsiella pneumoniae carbapenemase 2 (15%), and NDM-1 (10%). We identified 5 dominant sequence types (STs); 4 were global (ST410, ST131, ST167, and ST405), and 1 (ST1284) was limited to Turkey. OXA-181 was frequent in Jordan (because of the ST410-B4/H24RxC subclade) and Turkey (because of ST1284). We found nearly identical IncX3-bla plasmids among 11 STs from 12 countries. NDM-5 was frequent in Egypt, Thailand (linked with ST410-B4/H24RxC and ST167-B subclades), and Vietnam (because of ST448). OXA-48 was common in Turkey (linked with ST11260). Global K. pneumoniae carbapenemases were linked with ST131 C1/H30 subclade and NDM-1 with various STs. The global carbapenemase E. coli population is dominated by diverse STs with different characteristics and varied geographic distributions, requiring ongoing genomic surveillance.
我们描述了 2015-2017 年 36 个国家 229 株碳青霉烯酶产生大肠埃希菌的全球分子流行病学。常见的碳青霉烯酶有 oxacillinase(OXA)181(23%)、New Delhi metallo-β-lactamase(NDM)5(20%)、OXA-48(17%)、Klebsiella pneumoniae carbapenemase 2(15%)和 NDM-1(10%)。我们鉴定了 5 种主要的序列型(ST);其中 4 种是全球性的(ST410、ST131、ST167 和 ST405),1 种(ST1284)仅限于土耳其。OXA-181 在约旦(因为 ST410-B4/H24RxC 亚群)和土耳其(因为 ST1284)很常见。我们在来自 12 个国家的 11 种 ST 中发现了几乎相同的 IncX3-bla 质粒。NDM-5 在埃及、泰国(与 ST410-B4/H24RxC 和 ST167-B 亚群有关)和越南(因为 ST448)很常见。OXA-48 在土耳其很常见(与 ST11260 有关)。全球 K. pneumoniae carbapenemases 与 ST131 C1/H30 亚群有关,而 NDM-1 与各种 ST 有关。全球碳青霉烯酶大肠埃希菌种群由具有不同特征和不同地理分布的不同 ST 主导,需要进行持续的基因组监测。