The rapid spread of carbapenemase-producing Klebsiella pneumoniae(cpKP)poses seri-ous threats to public health;however,the underlying genetic basis for its dissemination is still unknown.We conducted a comprehensive genomic epidemiology analysis on 420 cpKP isolates col-lected from 70 hospitals in 24 provinces/autonomous regions/municipalities of China during 2009-2017 by short-/long-read sequencing.The results showed that most cpKP isolates were categorized into clonal group 258(CG258),in which ST11 was the dominant clone.Phylogenetic analysis revealed three major clades including the top one of Clade 3 for CG258 cpKP isolates.Additionally,carbapenemase gene analysis indicated that blaKPC was dominant in the cpKP isolates,and most blaKPC genes were located in five major incompatibility(Inc)groups of blaKPC-harboring plasmids.Importantly,three advantageous combinations of host-blaKPC-carrying plasmid(Clade 3.1+3.2-IncFⅡpHN7A8,Clade 3.1+3.2-IncFⅡpHN7A8:IncR,and Clade 3.3-IncFⅡpHN7A8:InCpA1763-KPC)were identified to confer cpKP isolates the advantages in both genotypes(strong correlation/coevolution)and phenotypes(resistance/growth/competition)to facilitate the nationwide spread of ST11/CG258 cpKP.Intriguingly,Bayesian skyline analysis illustrated that the three advanta-geous combinations might be directly associated with the strong population expansion during 2007-2008 and subsequent maintenance of the population of ST11/CG258 cpKP after 2008.We then examined drug resistance profiles of these cpKP isolates and proposed combination treatment regimens for CG258/non-CG258 cpKP infections.Thus,the findings of our systematical analysis shed light on the molecular epidemiology and genetic basis for the dissemination of ST11/CG258 cpKP in China,and much emphasis should be given to the close monitoring of advantageous cpKP-plasmid combinations.

Cuidan Li;Xiaoyuan Jiang;Tingting Yang;Yingjiao Ju;Zhe Yin;Liya Yue;Guannan Ma;Xuebing Wang;Ying Jing;Xinhua Luo;Shuangshuang Li;Xue Yang;Fei Chen;Dongsheng Zhou

CAS Key Laboratory of Genome Sciences&Information,Beijing Institute of Genomics,Chinese Academy of Sciences and China National Center for Bioinformation,Beijing 100101,China;State Key Laboratory of Pathogen and Biosecurity,Beijing Institute of Microbiology and Epidemiology,Beijing 100071,China;University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Pathogenesis,Prevention and Treatment of High Incidence Diseases in Central Asia,Urumqi 830011,China;Beijing Key Laboratory of Genome and Precision Medicine Technologies,Beijing 100101,China

基因组蛋白质组与生物信息学报（英文版）

[1]Cuidan Li;Xiaoyuan Jiang;Tingting Yang;Yingjiao Ju;Zhe Yin;Liya Yue;Guannan Ma;Xuebing Wang;Ying Jing;Xinhua Luo;Shuangshuang Li;Xue Yang;Fei Chen;Dongsheng Zhou-.Genomic Epidemiology of Carbapenemase-producing Klebsiella pneumoniae in China)[J].基因组蛋白质组与生物信息学报（英文版）,2022(06):1154-1167

Carbapenemase,cpKP,CG258,pHN7A8,InCpA1763

Genomic,Epidemiology,producing,Klebsiella,pneumoniae,China,rapid,spread,carbapenemase,poses,seri,threats,public,health,however,underlying,basis,its,dissemination,still,unknown,We,conducted,comprehensive,genomic,epidemiology,analysis,isolates,col,lected,from,hospitals,provinces,autonomous,regions,municipalities,during,by,short,long,sequencing,results,showed,that,most,were,categorized,into,clonal,which,ST11,was,dominant,clone,Phylogenetic,revealed,three,major,clades,including,top,Clade,Additionally,indicated,blaKPC,genes,located,five,incompatibility,groups,harboring,plasmids,Importantly,advantageous,combinations,host,carrying,1+3,IncF,IncR,identified,confer,advantages,both,genotypes,strong,correlation,coevolution,phenotypes,resistance,growth,competition,facilitate,nationwide,Intriguingly,Bayesian,skyline,illustrated,might,be,directly,associated,population,expansion,subsequent,maintenance,after,then,examined,drug,profiles,these,proposed,treatment,regimens,infections,Thus,findings,our,systematical,shed,light,molecular,much,emphasis,should,given,close,monitoring

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