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[Real-time rectal swab Xpert Carba-R assay for early warning of CRO bloodstream infection in patients undergoing hematopoietic stem cell transplant: a clinical feasibility study].
Zhonghua Xue Ye Xue Za Zhi
November 2024
Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
This study aimed to analyze the homology between carbapenem-resistant organisms (CRO) intestinal colonization strains and bloodstream infection (BSI) strains in patients undergoing hematopoietic stem cell transplantation (HSCT), confirming the clinical use of the real-time rectal swab Xpert Carba-R assay, and investigate its feasibility in early warning of BSI. Drug-resistant strains obtained from rectal swabs and blood culture samples of patients undergoing the same HSCT from January 2021 to December 2021 were collected and analyzed. The homology of the CRO intestinal colonization and BSI strains was confirmed using strain identification, antimicrobial resistance phenotyping, whole genome sequencing (WGS), multilocus sequence typing (MLST), and carbapenemase type identification.
View Article and Find Full Text PDFNosocomial transmission of NDM-1-containing Klebsiella pneumoniae ST147 in a Dutch pediatric oncology center associated with patients from Ukraine.
BMC Infect Dis
December 2024
Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands.
We studied nosocomial transmission of multidrug-resistant bla-containing Klebsiella pneumoniae ST147 in a Dutch pediatric oncology center. Whole-genome multilocus sequence typing revealed two genetic clusters consisting of 2 and 5 K. pneumoniae isolates, both from Ukrainian medical evacuees and Dutch patients.
View Article and Find Full Text PDFOverexpression of KPC contributes to ceftazidime-avibactam heteroresistance in clinical isolates of carbapenem-resistant .
Front Cell Infect Microbiol
December 2024
Key Laboratory of Respiratory Disease, People's Hospital of Yangjiang, Yangjiang, China.
Ceftazidime-avibactam (CZA) is one of the effective antibiotics used for the treatment of carbapenem-resistant (CRKP) infections, but its resistance rate has increased recently. Previous studies have focused on the mechanisms of CZA resistance, while its heteroresistance in CRKP remains poorly understood. This study aimed to investigate the characteristics and mechanisms of CZA heteroresistance in CRKP isolates.
View Article and Find Full Text PDFCharacterization of Newly Isolated Bacteriophages Targeting Carbapenem-Resistant Klebsiella pneumoniae.
J Microbiol
December 2024
Department of Microbiology, School of Medicine, Kyungpook National University, Gukchaebosang-Ro 680, Jung-Gu, Daegu, 41944, Republic of Korea.
Klebsiella pneumoniae, a Gram-negative opportunistic pathogen, is increasingly resistant to carbapenems in clinical settings. This growing problem necessitates the development of alternative antibiotics, with phage therapy being one promising option. In this study, we investigated novel phages targeting carbapenem-resistant Klebsiella pneumoniae (CRKP) and evaluated their lytic capacity against clinical isolates of CRKP.
View Article and Find Full Text PDFEmerging epidemic of the Africa-type plasmid in penicillinase-producing in Guangdong, China, 2013-2022.
Emerg Microbes Infect
December 2025
Dermatology Hospital, Southern Medical University, Guangzhou, People's Republic of China.
The prevalence of penicillinase-producing (PPNG) is a crucial public health concern because of its resistance to penicillin and cephalosporins. From 2013 to 2022, a total of 1748 isolates from Guangdong, China, were examined for their antibiotic susceptibility and molecular epidemiological characteristics. PPNG prevalence increased markedly from 37.
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