Antimicrobial susceptibility of animal and food isolates of Salmonella enterica

Junod, T.; Lopez-Martin, J; Gadicke P.

Abstract

Background: Bacterial resistance to one or more antimicrobials is worrisome. Aim: To determine the susceptibility to antimicrobials of Salmonella enterica isolates from animals and food, from the Laboratory of Veterinary Microbiology at the University of Concepcion. Material and Methods: The samples were isolated according to traditional microbiological methods standardized protocols. Resistance was determined by the Kirby-Bauer method and minimal inhibitory concentration (MIC), following Clinical and Laboratory Standards Institute recommendations (2008). Results: Nine sero types were identified among the 68 isolates. Strains were resistant to one or more antibiotics and 11 patterns of resistance were identified. Multidrug resistance (MDR) was observed in 20.5% of the strains tested. The most common was Oxytetracycline resistance (69.1%). In food, the predominant serotype was S. Derby (2.9%) and S. Senftenberg (2.9%), which is commonly found in food intended for animal consumption. In samples of animal origin, the predominant sero types were S. infantis (33.8%) and S. Group E (3.9;-;-) (23.5%). Conclusions: The frequency of resistance found and the impending risk that these strains could reach humans through the food chain, should prompt a follow-up study of this pathogen.

Más información

Título según WOS: Antimicrobial susceptibility of animal and food isolates of Salmonella enterica
Título de la Revista: REVISTA MEDICA DE CHILE
Volumen: 141
Número: 3
Editorial: SOC MEDICA SANTIAGO
Fecha de publicación: 2013
Página de inicio: 298
Página final: 304
Idioma: Spanish
Notas: ISI