Introduction: () is an important opportunistic pathogen causes serious community and hospital-acquired infections, which is highly resistant to antibiotics. We aimed to determine the frequency of multidrug resistant (MDR) and molecular typing of clinical isolates of .
Methodology: One hundred isolates of were collected from clinical samples in three general hospitals in Kermanshah. The antimicrobial susceptibility and extended-spectrum beta-lactamases (ESBL) production of isolates were determined using disk diffusion and combined disk methods, respectively. The gene, class I and II integrons were detected using polymerase chain reaction. The positive isolates were selected for genotyping using pulsed-field gel electrophoresis (PFGE).
Results: MDR phenotype was observed in 56% of isolates. The 40% of isolates were ESBL positive and 35 isolates contained . Class I and II of integrons were detected in 50 (89.2%) and 39 (69.6%) of MDR isolates, respectively. PFGE patterns of positive isolates indicated 19 clusters (X) with different genotype patterns.
Conclusions: The study findings highlight the concern of circulating MDR strains of with and class I and II integrons in Kermanshah hospitals. The presence of integrons among isolates may facilitate the spread of new resistance genes in this bacterium. Therefore, surveillance for the spread of MDR strains of this bacterium is recommended in hospitals.
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http://dx.doi.org/10.4103/ijabmr.IJABMR_333_16 | DOI Listing |
J Infect Dev Ctries
December 2024
Department of Medical Microbiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey.
Introduction: This study aims to investigate the presence of class 1, 2, and 3 integrons in Acinetobacter baumannii isolates, evaluate the relationship between integrons and antibiotic resistance and determine the clonal relationship between isolates by PFGE method.
Methodology: A total of 188 A. baumannii strains between February 2020 and March 2023 were included in the study.
Braz J Microbiol
January 2025
ICAR-Central Institute of Fisheries Technology (ICAR-CIFT), Willingdon Island, Cochin, Kerala, 682029, India.
Aeromonas inhabit diverse aquatic habitats and are recognized as both opportunistic and primary pathogens of fish and humans. This study delineates the biochemical and gyrB sequence-based molecular identification of 14 Aeromonas strains isolated from aquatic environments in Kerala, India, identifying them as A. dhakensis (50%), A.
View Article and Find Full Text PDFFEMS Microbiol Lett
January 2025
Department of Bioscience and Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur-721302, West Bengal, India.
Verona-integron-metallo-β-lactamase (VIM-2) is one of the most widespread class B β-lactamase responsible for β-lactam resistance. Although active-site residues help in metal binding, the residues nearing the active-site possess functional importance. Here, to decipher the role of such residues in the activity and stability of VIM-2, the residues E146, D182, N210, S207, and D213 were selected through in-silico analyses and substituted with alanine using site-directed mutagenesis.
View Article and Find Full Text PDFFoods
December 2024
Division of Data, Statistics and Risk Assessment, Austrian Agency for Health and Food Safety AGES, 1220 Vienna, Austria.
Plant-derived foods are potential vehicles for microbial antibiotic resistance genes (ARGs), which can be transferred to the human microbiome if consumed raw or minimally processed. The aim of this study was to determine the prevalence and the amount of clinically relevant ARGs and mobile genetic elements (MGEs) in differently processed smoothies (freshly prepared, cold-pressed, pasteurized and high-pressure processed) and fresh produce samples (organically and conventionally cultivated) to assess potential health hazards associated with their consumption. The MGE and the class 1 integron-integrase gene were detected by probe-based qPCR in concentrations up to 10 copies/mL in all smoothies, lettuce, carrots and a single tomato sample.
View Article and Find Full Text PDFMicrob Pathog
January 2025
Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa; School of Pharmacy, University of Jordan, Amman, 11942, Jordan.
Unlabelled: The study investigated the resistome, virulome and mobilome of multidrug resistant (MDR) Klebsiella pneumoniae and Klebsiella oxytoca clinical isolates.
Methods: A total of 46 suspected Klebsiella species (spp.) were collected from blood cultures within the uMgungundlovu District in the KwaZulu-Natal Province.
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