ArticleFrontiers in pediatrics2024
Multidrug-resistant ST11-KL64 hypervirulent
Article in Frontiers in pediatrics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Antimicrobial resistance, virulence defects, and evolutionary dynamics of multidrug-resistantMicrobiology spectrum · 2026Article
- First identification of an ST11-KL64 hypervirulentFrontiers in microbiology · 2026Article
- Phenotypic and molecular characterization of Klebsiella pneumoniae in neonates and pediatric patients: antibiotic resistance, β-Lactamase genes, and sociodemographic risk factors.BMC infectious diseases · 2025Article
- Emergence of ST11Microbiology spectrum · 2025Article
- Molecular characteristics and antimicrobial susceptibility of carbapenem-resistantFrontiers in microbiology · 2025Article
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: Hypervirulent carbapenem-resistant Klebsiella pneumoniae (hv-CRKP) poses an increasing public health risk due to its high treatment difficulty and associated mortality, especially in bone marrow transplant (BMT) patients. The emergence of strains with multiple resistance mechanisms further complicates the management of these infections. Methods: We isolated and characterized a novel ST11-KL64 hv-CRKP strain from a pediatric bone marrow transplantation patient. Antimicrobial susceptibility testing was performed to determine resistance patterns. Comprehensive genomic analysis was conducted to identify plasmid types, virulence factors, and antimicrobial resistance genes, as well as potential resistance mechanisms associated with mutations and plasmid-mediated variants. Results: The isolated hv-CRKP strain exhibited multidrug resistance to carbapenem, tigecycline, and polymyxin. Genomic analysis revealed that the IncHI1B/repB plasmid carried virulence factors ( Discussion: The combination of virulence and antimicrobial resistance factors in the ST11-KL64 hv-CRKP strain represents a significant challenge for treating immunocompromised pediatric patients. Particularly concerning is the resistance to polymyxin and tigecycline, which are often last-resort treatments for multidrug-resistant infections. The findings highlight the urgent need for effective surveillance, infection control measures, and novel therapeutic strategies to manage such hypervirulent and multidrug-resistant pathogens.
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Registered trials
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