Characterization of enterotoxins and antibiotic susceptibility of Staphylococcus aureus isolates from sheep and goat milk
2011
Giacinti, G., Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana, Roma (Italy) | Tammaro, A. | Sagrafoli, D. | Patriarca, D. | Pietrini, P. | Amatiste, S.
Staphylococcus aureus is one of the most important causes of mastitis in dairy animals and the enterotoxic ability may cause in milk and milk products contamination and staphylococcal food poisoning in consumer. The aim of this study was to investigate the prevalence of enterotoxin producing in strains of S. aureus and their antibiotic sensitivity, isolated from sheep and goat milk. The relationship between enterotoxin producing and antibiotic sensitivity was studied. Bulk milk can be presumed to contain enterotoxigenic S. aureus and be the source of staphylococcal food poisoning from raw milk and milk products. In light of these results it is necessary to improve the sanitary and hygienic quality of raw milk by frequent bacteriology analyses of bulk milk and the udder samples from individual animals. Although the presence of mecA gene was found in one strain, this suggest the importance of monitoring the development of antimicrobial resistance in S. aureus isolated from intramammary infections in sheep and goats as milk and milk products could be an important factor for the transfer of antibiotic resistances.
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