Article (Scientific journals)
Exploring the presence, genomic traits, and pathogenic potential of extended-spectrum β-lactamase Escherichia coli in freshwater, wastewater, and hospital effluents.
Crettels, Leslie; Burlion, Nadine; Habets, Audrey et al.
2024In Journal of Applied Microbiology, 135 (7)
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Keywords :
Escherichia coli; antimicrobial resistance; extended-spectrum β-lactamase; carbapenemase; Galleriamellonella; freshwaters
Abstract :
[en] AIMS: The purpose of this work was to study extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (ESBL-EC) in freshwaters, hospital effluents, and wastewaters during two sampling campaigns in 2021. METHODS AND RESULTS: Water sampling was performed at 24 stations in the Ourthe watershed in Belgium. A total of 644 ESBL (n = 642) and AmpC (n = 2) E. coli strains were isolated. Disk-diffusion assays were performed following the EUCAST's recommendations. All strains were tested for the presence of blaCTX-M-1, blaCTX-M-2, and blaCTX-M-9 gene groups by PCR. Genes belonging to blaCTX-M-1 and blaCTX-M-9 groups were detected, respectively, in 73.6% and 14.9% of the strains. No blaCTX-M-2 group's gene was found. A subset of strains (n = 40) was selected for whole genome sequencing. Escherichia coli serotype O18: H7 ST 1463 was predominant (n = 14) in the sequenced strains and showed pathogenicity in the Galleria mellonella larvae model. β-lactamase genes identified were blaCTX-M (n = 21), with blaCTX-M-15 mostly represented (n = 15), as well as blaTEM (n = 11), blaOXA (n = 7), blaSHV (n = 9), and carbapenemase (CP) genes were observed in several strains-blaKPC-3 (n = 19), blaNDM-1 (n = 1), blaVIM-1 (n = 2), and blaOXA-244 (n = 2)-even from freshwaters. CONCLUSIONS: ESBL-EC are widely distributed in the aquatic environment in Belgium and contain a variety of ESBL and CP genes.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Crettels, Leslie ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) ; Department of Microbiology, Scientific Institute of Public Service (ISSeP), 4000 Liège, Belgium
Burlion, Nadine;  Department of Microbiology, Scientific Institute of Public Service (ISSeP), 4000 Liège, Belgium
Habets, Audrey  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Santé publique vétérinaire
Taminiau, Bernard  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Santé publique vétérinaire
Daube, Georges  ;  Université de Liège - ULiège > Département de sciences des denrées alimentaires (DDA) > Microbiologie des denrées alimentaires
Delrée, Elisa;  Department of Microbiology, Scientific Institute of Public Service (ISSeP), 4000 Liège, Belgium
Mouchette, Anne-Françoise;  Department of Microbiology, Scientific Institute of Public Service (ISSeP), 4000 Liège, Belgium
Thiry, Damien  ;  Université de Liège - ULiège > Département des maladies infectieuses et parasitaires (DMI) > Bactériologie vétérinaire et maladies bactériennes animales
Language :
English
Title :
Exploring the presence, genomic traits, and pathogenic potential of extended-spectrum β-lactamase Escherichia coli in freshwater, wastewater, and hospital effluents.
Publication date :
02 July 2024
Journal title :
Journal of Applied Microbiology
ISSN :
1364-5072
eISSN :
1365-2672
Publisher :
Oxford University Press, England
Volume :
135
Issue :
7
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ISSeP - Institut Scientifique de Service Public
Funding text :
The authors thank the ISSEP for the funding of this study (EBLSE project).
Available on ORBi :
since 16 August 2024

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