Hypervirulent Klebsiella pneumoniae have been rarely described in Latin America. This work describes the characterization of hypervirulent K. pneumoniae isolates capsular serotype K2 belonging to sequence types 86 and 380. The assays showed the hypervirulent K. pneumoniae highly virulent, which is determined by the plasmid borne virulence genes. At this time, the hypervirulent K. pneumoniae clinical isolates in Mexico are extensively susceptible to antibiotics.
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http://dx.doi.org/10.1016/j.diagmicrobio.2019.01.013 | DOI Listing |
PLoS Pathog
January 2025
Department of Respiratory Medicine, Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun, China.
Hypervirulent Klebsiella pneumoniae (hvKP) poses an alarming threat in clinical settings and global public health owing to its high pathogenicity, epidemic success and rapid development of drug resistance, especially the emergence of carbapenem-resistant lineages (CR-hvKP). With the decline of the "last resort" antibiotic class and the decreasing efficacy of first-line antibiotics, innovative alternative therapeutics are urgently needed. Capsule, an essential virulence determinant, is a major cause of the enhanced pathogenicity of hvKP and represents an attractive drug target to prevent the devastating clinical outcomes caused by hvKP infection.
View Article and Find Full Text PDFiScience
December 2024
Ningxia Key Laboratory of Clinical and Pathogenic Microbiology, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, China.
The global prevalence of ST11 hypervirulent carbapenem-resistant (hv-CRKP) isolates has been increasingly documented, yet genomic characterization of this clone remains insufficiently explored. Here, we report a clinical ST11-KL25 hv-CRKP strain (KP156) that exhibited resistance to multiple antibiotics and demonstrated hypervirulence in a mouse infection model. Whole-genome sequencing revealed that KP156 harbored one virulence plasmid (pKP156-Vir) and two resistance plasmids (pKP156-KPC and pKP156-tetA).
View Article and Find Full Text PDFAnn Clin Microbiol Antimicrob
January 2025
Department of Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China.
Background: The emergence of colistin resistance in carbapenem-resistant Klebsiella pneumoniae (CRKP) is a significant public health concern, as colistin has been the last resort for treating such infections. This study aimed to investigate the prevalence and molecular characteristics of colistin-resistant CRKP isolates in Central South China.
Methods: CRKP isolates from twelve hospitals in Central South China were screened for colistin resistance using broth microdilution.
BMC Microbiol
December 2024
Department of Clinical Microbiology, Zibo City Key Laboratory of Respiratory Infection and Clinical Microbiology, Zibo Municipal Hospital, Zibo, 255400, China.
Background: Klebsiella pneumoniae bloodstream infection (KP BSI) is a severe clinical condition characterized by high mortality rates. Despite the clinical significance, accurate predictors of mortality in KP BSI have yet to be fully identified.
Methods: A retrospective analysis was conducted on the clinical data of 90 cases of KP BSI.
BMC Infect Dis
December 2024
Lab Services and Infection Control; Chief, Education and Research, Artemis Hospitals, Sector-51, Gurugram, Haryana, India.
Klebsiella pneumoniae, a pathogen of concern worldwide can be classified as classical K. pneumoniae (cKp) and Hypervirulent K. pneumoniae (HvKp).
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