Multidrug-resistant Salmonella enterica serovar Typhimurium phage type DT104 has emerged during the last decade as a global health problem because of its involvement in diseases in animals and humans. Multidrug-resistant DT104 strains are mostly resistant to ampicillin, chloramphenicol, streptomycin, sulfonamides and tetracyclines (ACSSuT resistance type). The genes coding for such resistances are clustered on the chromosome. This paper reviews new developments in the characterization of S. enterica Typhimurium DT104, its chromosomal antibiotic resistance genes and their spread among other S. enterica Typhimurium phage types and other S. enterica serovars, the development of specific detection methods, virulence characteristics, and the evolution of multidrugresistance with regard to the emergence of quinolone resistance. Salmonella Typhimurium DT104 / multidrug resistance / Salmonella genomic island I Rsum -Caractrisation molculaire, diffusion et volution de la rsistance multiple aux antibiotiques chez Salmonella enterica Typhimurium DT104. Le lysotype DT104 de Salmonella enterica Typhimurium prsentant une rsistance multiple aux antibiotiques a merg durant la dernire dcennie comme un problme mondial de sant publique qui touche la fois humains et animaux. Les souches du lysotype DT104 sont en gnral rsistantes l'ampicilline, au chloramphnicol, la streptomycine, aux sulphamides et aux ttracyclines (profil de rsistance ACSSuT). Les gnes codant pour ces rsistances sont groups sur le chromosome. Cet article prsente une revue des derniers dveloppements dans la caractrisation de S. enterica Typhimurium DT104, ses gnes chromosomiques de rsistance et leur diffusion chez d'autres lysotypes de S. enterica Typhimurium et d'autres serotypes de S. enterica, le dveloppement de mthodes spcifiques de dtection, les caractristiques de virulence, et l'volution de la rsistance multiple au regard de l'mergence de la rsistance aux quinolones. Salmonella Typhimurium DT104 / rsistance multiple / lot gnomique I
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Cloeckaert et al. (2001) studied this question.
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