Antibiotic Resistance to Staphylococcus aureus and Methicillin Resistant Staphylococcus aureus (MRSA) Isolated from Dairy Farms in Surabaya, Indonesia

摘要

Raw milk samples (80) were obtained from four dairy farms. Bacterial identification was based on the growth in Mannitol Salt Agar, Gram staining, catalase, and coagulase tests. 14 (17.5%) out of 80 milk samples were positive for Staphylococcus aureus.Antibiotic sensitivity test using Cefoxitin, Penicillin, Amphicillin, Oxacillin and Tetracyclin showed resistance 14(100%), 14(100%), 12(85,7%), 9(64,3%) and 0(0%) to the antibiotics in that order, 9 isolates were positive for MRSA. It was concluded that the raw milk can be a potential reservoir for MRSA strains which is a threat to public health.