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The pathogenicity traits of avian pathogenic Escherichia coli O25-ST131 associated with avian colibacillosis in Georgia poultry and their genotypic and phenotypic overlap with other extraintestinal pathogenic E. coli.
J Appl Microbiol
January 2025
Department of Population Health, College of Veterinary Medicine, University of Georgia, 501 D.W. Brooks Drive, Athens, GA 30602, USA.
Aims: To characterize Escherichia coli O25 ST131 (O25-ST131) isolated from Georgia poultry-a "global high-risk" clonal strain.
Methods And Results: Using multiplex PCR to detect target genes in 98 isolates of avian pathogenic E. coli (APEC) O25 recovered from avians diagnosed with colibacillosis (n = 87) and healthy chicks (n = 11) in Georgia, USA.
Clinical and molecular analysis of ESBL, carbapenemase, and colistin-resistant bacteria in UTI patients.
Cell Mol Biol (Noisy-le-grand)
January 2025
Jiangxi Key Laboratory of Oncology (2024SSY06041), Jiangxi Cancer Hospital & Institute, The Second Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330029, P.R. China.
Uropathogens, particularly bacteria, can infect any part of the urinary tract and cause bacteriuria. Our study aimed to examine the antibiotic-resistant profile, associated risk factors, and phenotypic and genotypic features of ESBL, carbapenemase, and mcr resistance genes in multidrug-resistant bacteria. Samples were inoculated on culture media, identified using standard biochemical tests, and species confirmation was performed via 16S rRNA gene amplification.
View Article and Find Full Text PDFComprehensive Assessment of Initial Adaptation of ESBL Positive ST131 Escherichia coli to Carbapenem Exposure.
J Infect Dis
November 2024
Department of Infectious Diseases and Infection Control, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Background: It remains unclear how high-risk Escherichia coli lineages, like sequence type (ST) 131, initially adapt to carbapenem exposure in their progression to carbapenem resistance.
Methods: Carbapenem mutation frequency was measured in multiple subclades of extended-spectrum β-lactamase (ESBL) positive ST131 clinical isolates using a fluctuation assay followed by whole genome sequencing (WGS) characterization. Genomic, transcriptomic, and porin analyses of ST131 C2/H30Rx isolate, MB1860, under prolonged, increasing carbapenem exposure was performed using two experimental evolutionary platforms to measure fast vs.
Extended-spectrum beta-lactamase-producing Enterobacterales in human health: Experience from the tricycle project, Ghana.
PLoS One
November 2024
Department of Medical Microbiology, University of Ghana Medical School, College of Health Sciences, University of Ghana, Accra, Ghana.
Background: Vulnerable groups, such as pregnant women, are at increased risk of potentially life-threatening infections with extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-E) for both mother and newborn. However, data regarding ESBL-E carriage and associated risk factors in Ghanaian pregnant women remain scarce.
Objective: This study aimed to determine the prevalence of ESBL-E carriage and its associated risk factors among pregnant women attending the antenatal clinic at the Korle Bu Teaching Hospital.
Extended-spectrum beta-lactamase- and carbapenemase-producing isolates causing hospital- and community-acquired infections in Tunisia (2001-2019): expansion of CTX-M-15-C2 and CTX-M-27-C1 ST131 subclades.
Microbiol Spectr
October 2024
Laboratory of Microbiology, Research Laboratory for Microorganisms and Human Disease, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia.
Unlabelled: The prevalence of infections caused by extended-spectrum beta-lactamase (ESBL)-producing (ESBL-EC) and carbapenemase-producing (CP-EC) is increasing worldwide. We investigated the epidemiology of ESBL-EC and CP-EC causing hospital-acquired (HA) infections in a large teaching hospital in Tunisia over the last two decades and compared it with a collection of 107 community-acquired (CA) ESBL-EC isolates. Between 2001 and 2019, the incidence of HA ESBL-EC increased significantly from 0.
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