Outbreak of IncX8 Plasmid–Mediated KPC-3–Producing Enterobacterales Infection, China

Carbapenem-resistant Enterobacterales (CRE) infection is highly endemic in China; Klebsiella pneumoniae carbapenemase (KPC) 2–producing CRE is the most common, whereas KPC-3–producing CRE is rare. We report an outbreak of KPC-3–producing Enterobacterales infection in China. During August 2020–June 2...

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Published inEmerging infectious diseases Vol. 28; no. 7; pp. 1421 - 1430
Main Authors Chen, Lan, Ai, Wenxiu, Zhou, Ying, Wu, Chunyang, Guo, Yinjuan, Wu, Xiaocui, Wang, Bingjie, Rao, Lulin, Xu, Yanlei, Zhang, Jiao, Chen, Liang, Yu, Fangyou
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Published Atlanta U.S. National Center for Infectious Diseases 01.07.2022
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Abstract Carbapenem-resistant Enterobacterales (CRE) infection is highly endemic in China; Klebsiella pneumoniae carbapenemase (KPC) 2–producing CRE is the most common, whereas KPC-3–producing CRE is rare. We report an outbreak of KPC-3–producing Enterobacterales infection in China. During August 2020–June 2021, 25 blaKPC-3–positive Enterobacteriale isolates were detected from 24 patients in China. Whole-genome sequencing analysis revealed that the blaKPC-3 genes were harbored by IncX8 plasmids. The outbreak involved clonal expansion of KPC-3–producing Serratia marcescens and transmission of blaKPC-3 plasmids across different species. The blaKPC-3 plasmids demonstrated high conjugation frequencies (10−3 to 10−4). A Galleria mellonella infection model showed that 2 sequence type 65 K2 K. pneumoniae strains containing blaKPC-3 plasmids were highly virulent. A ceftazidime/avibactam in vitro selection assay indicated that the KPC-3–producing strains can readily develop resistance. The spread of blaKPC-3–harboring IncX8 plasmids and these KPC-3 strains should be closely monitored in China and globally.
AbstractList Carbapenem-resistant Enterobacterales (CRE) infection is highly endemic in China; Klebsiella pneumoniae carbapenemase (KPC) 2–producing CRE is the most common, whereas KPC-3–producing CRE is rare. We report an outbreak of KPC-3–producing Enterobacterales infection in China. During August 2020–June 2021, 25 bla KPC-3 –positive Enterobacteriale isolates were detected from 24 patients in China. Whole-genome sequencing analysis revealed that the bla KPC-3 genes were harbored by IncX8 plasmids. The outbreak involved clonal expansion of KPC-3–producing Serratia marcescens and transmission of bla KPC-3 plasmids across different species. The bla KPC-3 plasmids demonstrated high conjugation frequencies (10 −3 to 10 −4 ). A Galleria mellonella infection model showed that 2 sequence type 65 K2 K. pneumoniae strains containing bla KPC-3 plasmids were highly virulent. A ceftazidime/avibactam in vitro selection assay indicated that the KPC-3–producing strains can readily develop resistance. The spread of bla KPC-3 –harboring IncX8 plasmids and these KPC-3 strains should be closely monitored in China and globally.
Carbapenem-resistant Enterobacterales (CRE) infection is highly endemic in China; Klebsiella pneumoniae carbapenemase (KPC) 2-producing CRE is the most common, whereas KPC-3-producing CRE is rare. We report an outbreak of KPC-3-producing Enterobacterales infection in China. During August 2020-June 2021, 25 blaKPC-3-positive Enterobacteriale isolates were detected from 24 patients in China. Whole-genome sequencing analysis revealed that the blaKPC-3 genes were harbored by IncX8 plasmids. The outbreak involved clonal expansion of KPC-3-producing Serratia marcescens and transmission of blaKPC-3 plasmids across different species. The blaKPC-3 plasmids demonstrated high conjugation frequencies (10-3 to 10-4). A Galleria mellonella infection model showed that 2 sequence type 65 K2 K. pneumoniae strains containing blaKPC-3 plasmids were highly virulent. A ceftazidime/avibactam in vitro selection assay indicated that the KPC-3-producing strains can readily develop resistance. The spread of blaKPC-3-harboring IncX8 plasmids and these KPC-3 strains should be closely monitored in China and globally.Carbapenem-resistant Enterobacterales (CRE) infection is highly endemic in China; Klebsiella pneumoniae carbapenemase (KPC) 2-producing CRE is the most common, whereas KPC-3-producing CRE is rare. We report an outbreak of KPC-3-producing Enterobacterales infection in China. During August 2020-June 2021, 25 blaKPC-3-positive Enterobacteriale isolates were detected from 24 patients in China. Whole-genome sequencing analysis revealed that the blaKPC-3 genes were harbored by IncX8 plasmids. The outbreak involved clonal expansion of KPC-3-producing Serratia marcescens and transmission of blaKPC-3 plasmids across different species. The blaKPC-3 plasmids demonstrated high conjugation frequencies (10-3 to 10-4). A Galleria mellonella infection model showed that 2 sequence type 65 K2 K. pneumoniae strains containing blaKPC-3 plasmids were highly virulent. A ceftazidime/avibactam in vitro selection assay indicated that the KPC-3-producing strains can readily develop resistance. The spread of blaKPC-3-harboring IncX8 plasmids and these KPC-3 strains should be closely monitored in China and globally.
Carbapenem-resistant Enterobacterales (CRE) infection is highly endemic in China; Klebsiella pneumoniae carbapenemase (KPC) 2–producing CRE is the most common, whereas KPC-3–producing CRE is rare. We report an outbreak of KPC-3–producing Enterobacterales infection in China. During August 2020–June 2021, 25 blaKPC-3–positive Enterobacteriale isolates were detected from 24 patients in China. Whole-genome sequencing analysis revealed that the blaKPC-3 genes were harbored by IncX8 plasmids. The outbreak involved clonal expansion of KPC-3–producing Serratia marcescens and transmission of blaKPC-3 plasmids across different species. The blaKPC-3 plasmids demonstrated high conjugation frequencies (10−3 to 10−4). A Galleria mellonella infection model showed that 2 sequence type 65 K2 K. pneumoniae strains containing blaKPC-3 plasmids were highly virulent. A ceftazidime/avibactam in vitro selection assay indicated that the KPC-3–producing strains can readily develop resistance. The spread of blaKPC-3–harboring IncX8 plasmids and these KPC-3 strains should be closely monitored in China and globally.
Audience Professional
Academic
Author Xu, Yanlei
Guo, Yinjuan
Zhang, Jiao
Chen, Liang
Wu, Chunyang
Wu, Xiaocui
Wang, Bingjie
Ai, Wenxiu
Zhou, Ying
Rao, Lulin
Chen, Lan
Yu, Fangyou
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Snippet Carbapenem-resistant Enterobacterales (CRE) infection is highly endemic in China; Klebsiella pneumoniae carbapenemase (KPC) 2–producing CRE is the most common,...
Carbapenem-resistant Enterobacterales (CRE) infection is highly endemic in China; Klebsiella pneumoniae carbapenemase (KPC) 2-producing CRE is the most common,...
Carbapenem-resistant Enterobacterales (CRE) infection is highly endemic in China; Klebsiella pneumoniae carbapenemase (KPC) 2–producing CRE is the most common,...
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StartPage 1421
SubjectTerms Antibiotics
Antimicrobial agents
Buildings
carbapenemase
Cardiovascular disease
Causes of
China
Cloning
E coli
Enterobacterales
Epidemics
Genetic aspects
Genomes
Gram-negative bacteria
Gram-negative bacterial infections
horizontal transfer
Hospitals
Identification and classification
Infections
Klebsiella pneumoniae
KPC-3
Medical equipment
Outbreaks
Pathogens
Patients
Plasmids
Public health
Statistics
Surgery
transmission
Whole genome sequencing
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Title Outbreak of IncX8 Plasmid–Mediated KPC-3–Producing Enterobacterales Infection, China
URI https://www.proquest.com/docview/2699857584
https://www.proquest.com/docview/2679698803
https://pubmed.ncbi.nlm.nih.gov/PMC9239885
https://doaj.org/article/3f5da5c83bc049898c01b5c22e615bb4
Volume 28
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