TABLE 2.

Susceptibility patterns of 39 S. aureus strains when divided by clindamycin and erythromycin susceptibility phenotype

Phenotypea	No. of strains	No. with quinupristin MICs (μg/ml) of:		No. (%) Oxarb	Q-D MICsc	No. (%) of strains with ≥99.9% killing by:
		≤16	≥32			Quinupristin-dalfopristin	Vancomycin
Clins Erys	17	17	0	4 (24)	0.25–0.5	17 (100)	12 (71)
Clins Eryr	5	5	0	3 (60)	0.25–0.5	5 (100)	3 (60)
Clinr Eryr	17	1	16	14 (82)	0.5–1.0	0	10 (59)

^aClin^s and Clin^r, clindamycin susceptible and resistant, respectively; Ery^s and Ery^r, erythromycin susceptible and resistant, respectively. 

^bOxa^r, oxacillin resistant. 

^cQ-D MICs; quinupristin-dalfopristin MIC range (μg/ml).