The hypervirulent carbapenem-resistant (hv-CRKP) poses a substantial challenge to the global health care. However, the mechanism behind its evolution and transmission remain elusive. Here, four virulence plasmid types were identified from 310 hv-CRKP isolates collected nationwide during 2017-2018, based on their aerobactin ( locus) lineage and IncFIB replicons. Notably, pIUC1-IncFIB(K) and pIUC1-IncFIB(Mar), representing two epidemic virulence plasmids in Asia and Europe, respectively, accounted for >90% of the hv-CRKP episodes. Analysis of 494 isolates (376 from 2010-2013; 118 from 2017-2018) and 2578 public genomes indicated the notable role of IncFIB(Mar) plasmids in the hv-CRKP emergence and spread. Conjugation assays showed the helper IncFIB(Mar) plasmid could efficiently transfer into a hypervirulent strain and uniquely retromobilize with pIUC1-IncFIB(K) back into CRKP. Thereafter, the IncFIB(Mar) plasmid either lost rapidly or recombined with pIUC1-IncFIB(K), generating the hybrid pIUC1-IncFIB(Mar) plasmid. Our findings elucidated formation, evolution, and dissemination trajectories of the two major hv-CRKP strains in different regions.
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http://dx.doi.org/10.1126/sciadv.ado9097 | DOI Listing |
Sci Adv
January 2025
Institute of Antibiotics, Huashan Hospital, Fudan University, and Key Laboratory of Clinical Pharmacology of Antibiotics, National Heath Commission of China, Shanghai, China.
The hypervirulent carbapenem-resistant (hv-CRKP) poses a substantial challenge to the global health care. However, the mechanism behind its evolution and transmission remain elusive. Here, four virulence plasmid types were identified from 310 hv-CRKP isolates collected nationwide during 2017-2018, based on their aerobactin ( locus) lineage and IncFIB replicons.
View Article and Find Full Text PDFIndian J Med Res
February 2019
Department of Clinical Microbiology, Christian Medical College, Vellore, India.
Background & Objectives: Plasmid has led to increase in resistant bacterial pathogens through the exchange of antimicrobial resistance (AMR) genetic determinants through horizontal gene transfer. Baseline data on the occurrence of plasmids carrying AMR genes are lacking in India. This study was aimed to identify the plasmids associated with AMR genetic determinants in ESKAPE pathogens.
View Article and Find Full Text PDFPathog Glob Health
June 2017
a Department of Natural Sciences, School of Arts and Sciences , Lebanese American University, Byblos , Lebanon.
The escalating problem of antibiotic resistance, specifically cabarpenemase and extended-spectrum β-lacatamase (ESBL) producing K. pneumoniae strains, is directly correlated with increased patient morbidity and mortality and prolonged hospitalization and costs. In this study, a comprehensive genomic analysis encompassing the resistomics, virulence repertoire and mobile genetic elements of an NDM-1 positive ESBL-producing K.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!