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Houseflies (Musca domestica) as vectors of multidrug-resistant, ESBL-producing Escherichia coli in broiler poultry farms of North India: implications for antibiotic resistance transmission.
Environ Sci Pollut Res Int
January 2025
Gut Biology Laboratory, Room No. 117, Department of Zoology, University of Delhi, New Delhi, 110007, India.
The transmission of antibiotic resistance (AR) from farm animals to healthy human communities, beyond the food chain, is often facilitated by biological vectors, notably houseflies (Musca domestica). This study aimed to evaluate the role of M. domestica collected from commercial broiler chicken farms as a carrier of multidrug-resistant (MDR), extended-spectrum β-lactamase (ESBL)-producing Escherichia coli.
View Article and Find Full Text PDFGenomic characterization of pathotype diversity and drug resistance among generic Escherichia coli isolated from broiler chickens in Canada.
Can J Microbiol
January 2025
Canadian Food Inspection Agency, Ottawa Laboratory (Carling), Ottawa, Ontario, Canada;
Escherichia coli is a Gram-negative bacterium that is ubiquitous in animals and humans, with some strains capable of causing disease. The aim of this study was to perform a comparative genomic analysis of 2,732 generic E. coli isolates that were recovered from poultry samples collected from six regions in Canada as part of the National Microbiological Baseline study in Broiler Chicken.
View Article and Find Full Text PDFProximity-Ligation Metagenomic Sequence Analysis Reveals That the Antibiotic Resistome Makes Significant Transitions During Municipal Wastewater Treatment.
Environ Microbiol
January 2025
Department of Civil, Environmental, and Geo-Engineering, University of Minnesota, Minneapolis, Minnesota, USA.
Shotgun and proximity-ligation metagenomic sequencing were used to generate thousands of metagenome assembled genomes (MAGs) from the untreated wastewater, activated sludge bioreactors, and anaerobic digesters from two full-scale municipal wastewater treatment facilities. Analysis of the antibiotic resistance genes (ARGs) in the pool of contigs from the shotgun metagenomic sequences revealed significantly different relative abundances and types of ARGs in the untreated wastewaster compared to the activated sludge bioreactors or the anaerobic digesters (p < 0.05).
View Article and Find Full Text PDFDetection and Characterisation of Colistin-Resistant in Broiler Meats.
Microorganisms
December 2024
Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram 4225, Bangladesh.
The irrational use of antimicrobials has led to the emergence of resistance, impacting not only pathogenic bacteria but also commensal bacteria. Resistance against colistin, a last-resort antibiotic, mediated by globally disseminated plasmid-borne mobile colistin resistance () genes, has raised significant global concerns. This cross-sectional study aimed to investigate the antimicrobial resistance patterns of colistin-resistant () and mobilised colistin resistance ( 1-5) genes from broiler meat.
View Article and Find Full Text PDFMonitoring sewage and effluent water is an effective approach for the detection of the mobile colistin resistance genes (mcr) and associated bacterial hosts in the human population and environment in the USA.
Environ Pollut
February 2025
Center for Food Safety, Department of Food Science and Technology, University of Georgia, 1109 Experiment Street, Griffin, GA, USA. Electronic address:
Article Synopsis
- * A study in Georgia examined sewage and water samples, identifying mcr-positive Gram-negative bacteria, with mcr-9 found in sewage and mcr-3 in effluent and surface waters.
- * The isolates were multidrug-resistant, with whole genome sequencing revealing additional resistance genes, and indicating that mcr-9 may be circulating in humans, while also posing environmental risks.
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