Existing drug resistance among Staphylococcus spp. from raw milk samples in Khon Kaen province, Northeastern Thailand by direct quadriplex PCR

To describe the proportion of methicillin resistant Staphylococcus aureus, and mupirocin resistant among the isolates\ud from milk, three hundred and eighty-one samples were collected in Khon Kaen province, Thailand, during January to March,\ud 2014. Quadriplex PCR was a method of choice. The occurrence of S. aureus and other Staphylococcus spp. were 21.26 and\ud 34.12%, respectively. Among the 81 S. aureus isolates, 82.72 (67/81), 11.11 (9/81), and 6.17% (5/81) were S. aureus, S. aureus\ud carrying mecA, and S. aureus harboring mupA genes, respectively. These two mutant genes may possibly be transferred to\ud other bacteria in milk. Therefore, good hygienic practices and strict control may limit the spread