1. High Prevalence of Extended-Spectrum β-Lactamase-Producing Enterobacteriaceae in Wild Fish from the Mediterranean Sea in Algeria.
- Author
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Brahmi S, Touati A, Dunyach-Remy C, Sotto A, Pantel A, and Lavigne JP
- Subjects
- Algeria epidemiology, Aminoglycosides pharmacology, Animals, Anti-Bacterial Agents pharmacology, Enterobacteriaceae Infections epidemiology, Enterobacteriaceae Infections microbiology, Escherichia coli classification, Escherichia coli drug effects, Escherichia coli isolation & purification, Fish Diseases microbiology, Fishes, Fluoroquinolones pharmacology, Gastrointestinal Tract microbiology, Gene Expression, Genotype, Gills microbiology, Klebsiella pneumoniae classification, Klebsiella pneumoniae drug effects, Klebsiella pneumoniae isolation & purification, Mediterranean Sea epidemiology, Microbial Sensitivity Tests, Phylogeny, Plasmids chemistry, Plasmids metabolism, Prevalence, beta-Lactamases metabolism, beta-Lactams pharmacology, Drug Resistance, Multiple, Bacterial genetics, Enterobacteriaceae Infections veterinary, Escherichia coli genetics, Fish Diseases epidemiology, Klebsiella pneumoniae genetics, beta-Lactamases genetics
- Abstract
Aim: We investigated the prevalence of extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae among wild fish from the coast of Bejaia (Algeria) in the Mediterranean Sea., Results: From March 2012 to August 2013, gut and gill samples of wild fish were screened for the presence of ESBL-producing Enterobacteriaceae. Strains were characterized with regard to antibiotic resistance, β-lactamase content, plasmid-mediated quinolone resistance, aminoglycoside resistance genes, and clonality (repetitive sequence-based polymerase chain reaction profiles and multilocus sequence typing). Virulence traits were performed for Escherichia coli and Klebsiella pneumoniae isolates. Of the 300 fish studied, 64 (21.3%) isolates were screened as positive for ESBL producing by the double-disc method. The isolates corresponded to E. coli, K. pneumoniae, Enterobacter cloacae, Morganella morganii, Citrobacter freundii, and Proteus vulgaris. A predominance of bla
CTX-M gene was observed with a prevalence of 60.5% (n = 46). Furthermore, our study describes the association of important coresistance and virulence factors in E. coli and K. pneumoniae. Twelve of the ESBL producers carried genes of the qnr family and oqxAB gene and six carried the aac(6')-Ib-cr gene., Conclusions: Our results highlight for the first time the diffusion of multidrug-resistant Enterobacteriaceae isolates carrying resistance and virulence genes in fish from the Mediterranean Sea in Algeria.- Published
- 2018
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