Table 2.

Results of MRStox gene detection

MRStox result	No. of isolates with indicated results
	lukS-PV		tst		nuca		mecA
	Positive	Negative	Positive	Negative	Positive	Negative	Positive	Negative
Positive	27	1b	8	1b	1,781	0	141	0
Negative	2c	118	0	139	2	9	1	13d

^aBased on species identification (S. aureus, positive; non-S. aureus, negative).

^bPositive by both methods upon repeat testing.

^cNegative by both methods upon repeat testing.

^dOne isolate was methicillin resistant by oxacillin and cefoxitin broth microdilution but not by mecA PCR.