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Int J Antimicrob Agents. 2004 Jun;23(6):547-55.

Expanded-spectrum cephalosporin resistance in non-typhoid Salmonella.

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  • 1Laboratory of Bacteriology, Hellenic Pasteur Institute, Athens, Greece.

Abstract

Expanded-spectrum cephalosporins (ESCs) such as ceftriaxone, together with fluorinated quinolones, are the choice antibiotics in the treatment of invasive salmonella infections. Resistance to ESCs among non-typhoid salmonella has been recognised since the late 1980s. Currently, ESC-resistant salmonella strains are reported world-wide and in some areas their incidence is significant. Resistance is mainly due to acquisition of multi-resistant plasmids encoding a variety of extended-spectrum and AmpC-type beta-lactamases. The origins of ESC-resistant salmonellae are diverse. Exchange of resistance determinants between salmonellae and nosocomial enterobacteria seems to be frequent, at least in developing countries. Also, the use of newer beta-lactams in animal husbandry and veterinary medicine may have facilitated the spread of ESC-resistant salmonella strains in livestock.

Copyright 2004 Elsevier B.V.

PMID:
15194124
[PubMed - indexed for MEDLINE]
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