Asian Pacific Journal of Tropical Biomedicine
Antimicrobial drug resistance of Staphylococcus aureus in dairy products
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Abstract:
Objective: To evaluate the prevalence of multidrug resistant Staphylococcus aureus (S. aureus) in dairy products. Methods: Isolation and identification of S. aureus were performed in 3 dairy- based food products. The isolates were tested for their susceptibility to 5 different common antimicrobial drugs. Results: Of 50 samples examined, 5 (10%) were contaminated with S. aureus. Subsequently, the 5 isolates were subjected to antimicrobial resistance pattern using five antibiotic discs (methicillin, vancomycin, kanamycin, chloramphenicol and tetracycline). Sample 29 showed resistance to methicillin and vancomycin. Sample 18 showed intermediate response to tetracycline. The other samples were susceptible to all the antibiotics tested. Conclusions: The results provide preliminary data on sources of food contamination which may act as vehicles for the transmission of antimicrobial-resistant Staphylococcus. Therefore, it enables us to develop preventive strategies to avoid the emergence of new strains of resistant S. aureus.
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