Characterization of Staphylococcus aureus isolates from raw milk sources in Victoria, Australia

BMC Microbiology

Table 4 Antibiotic sensitivity of isolates in this study

Antibiotic	Class	Sensitive	Intermediate	Resistant
Ceftriaxone^a	Cephems	100 % (n = 13)	0 % (n = 0)	0 % (n = 0)
Ciprofloxacin	Fluoroquinolones	100 % (n = 13)	0 % (n = 0)	0 % (n = 0)
Erthromycin	Macrolides	100 % (n = 13)	0 % (n = 0)	0 % (n = 0)
Oxacillin	Penicillins	100 % (n = 13)	0 % (n = 0)	0 % (n = 0)
Penicillin	Penicillins	84.6 % (n = 11)	7.7 % (n = 1)	7.7 % (n = 1)
Tetracycline	Tetracyclines	100 % (n = 13)	0 % (n = 0)	0 % (n = 0)
Vancomycin	Glycopeptides	100 % (n = 13)	0 % (n = 0)	0 % (n = 0)

^aBreakpoints based on FDA guidelines [57]
Brekpoints are based on CLSI guidelines, with the exception of ceftriaxone, which uses the FDA brekpoints

ISSN: 1471-2180