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Antibiotic resistance in Salmonella enterica serotypes Typhimurium, Enteritidis and Infantis from human infections, foodstuffs and farm animals in Italy

Published online by Cambridge University Press:  26 February 2004

L. BUSANI
Affiliation:
Laboratorio di Medicina Veterinaria, Istituto Superiore di Sanità, Rome, Italy
C. GRAZIANI
Affiliation:
Laboratorio di Medicina Veterinaria, Istituto Superiore di Sanità, Rome, Italy
A. BATTISTI
Affiliation:
Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana, Rome, Italy
A. FRANCO
Affiliation:
Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana, Rome, Italy
A. RICCI
Affiliation:
Istituto Zooprofilattico Sperimentale delle Venezie, Legnano, Italy
D. VIO
Affiliation:
Istituto Zooprofilattico Sperimentale delle Venezie, Legnano, Italy
E. DIGIANNATALE
Affiliation:
Istituto Zooprofilattico Sperimentale dell' Abruzzo e del Molise, Teramo, Italy
F. PATERLINI
Affiliation:
Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia Romagna, Brescia, Italy
M. D'INCAU
Affiliation:
Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia Romagna, Brescia, Italy
S. OWCZAREK
Affiliation:
Laboratorio di Batteriologia e Micologia Medica, Istituto Superiore di Sanità, Rome, Italy
A. CAPRIOLI
Affiliation:
Laboratorio di Medicina Veterinaria, Istituto Superiore di Sanità, Rome, Italy
I. LUZZI
Affiliation:
Laboratorio di Batteriologia e Micologia Medica, Istituto Superiore di Sanità, Rome, Italy
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Abstract

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The antimicrobial susceptibility of isolates of Salmonella enterica serotypes Typhimurium, Enteritidis, and Infantis isolated from humans, foodstuffs and farm animals in Italy between 1999 and 2001 was examined. All the isolates were susceptible to cefotaxime and ciprofloxacin, but high rates of resistance were observed for several other drugs, especially for S. Typhimurium. The rates of resistance and multiresistance were generally higher among animal and food isolates than in human strains; conversely, no significant difference was observed between animal and food isolates. Among S. Typhimurium, multiresistance was more common in bovine, poultry and rabbit strains than in swine isolates, and was rare in strains from pigeon. Resistance to trimethoprim–sulphamethoxazole was mainly found in isolates of swine and human origin. This study confirms the role of livestock as a reservoir of drug-resistant Salmonella spp. and underlines the need for integrated surveillance systems of antibiotic resistance that consider isolates not only from human disease but also from the animal reservoirs and the food vehicles.

Type
Research Article
Copyright
© 2004 Cambridge University Press