Table 1.

Interpretation of erythromycin and clindamycin zone sizes in S. aureus.^a

	Sensitive	Intermediate	Resistant
Erythromycin	≥23 mm	14–22 mm	≤13 mm
Clindamycin	≥21 mm	15–20 mm	≤14 mm

^aCLSI Guidelines 2010: Performance std for Antimicrobial Disk Susceptibility Tests.