Species distribution, antibiotic resistance and virulence traits in enterococci from meat in Tunisia
- Klibi, N. 2
- Said, L.B. 2
- Jouini, A. 2
- Slama, K.B. 2
- López, M. 1
- Sallem, R.B. 2
- Boudabous, A. 2
- Torres, C. 1
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1
Universidad de La Rioja
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2
Université de Tunis El Manar
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ISSN: 0309-1740
Año de publicación: 2013
Volumen: 93
Número: 3
Páginas: 675-680
Tipo: Artículo
beta Ver similares en nube de resultadosOtras publicaciones en: Meat Science
Resumen
Antimicrobial resistance and the mechanisms implicated were studied in 119 enterococci from 105 meat samples from Tunisian markets. Almost 24.5% of recovered enterococci showed resistance against four or more antimicrobial agents and these isolates were identified to the species level. Enterococcus faecalis was the most prevalent species (41%). High percentages of erythromycin and tetracycline resistances were found among our isolates, and lower percentages were identified to aminoglycosides, ciprofloxacin and chloramphenicol. All tetracycline-resistant isolates carried the tet(M) and/or tet(L) genes. The erm(B) gene was detected in 78.5% of erythromycin-resistant isolates, ant(6)-Ia gene in 58.8% of streptomycin-resistant isolates, and cat(A) gene in one chloramphenicol-resistant isolate. Forty-eight isolates carried the gelE gene and exhibited gelatinase activity. The hyl and esp genes were detected in one and three Enterococcus faecium isolates, respectively. Streptomycin-resistant isolates showed a high genetic diversity by PFGE and MLST. Meat might play a role in the spread through the food chain of enterococci with these virulence and resistance characteristics to humans. © 2012 Elsevier Ltd.