Table 1 MICs by microdilution and Etest and disk diffusion inhibition zones in 108 rifampicin resistant MRSA isolates.
Microdilution MICs | No. of strains | E-test (range) MICs | Inhibition zones by disk diffusion No. of strains | ||
|---|---|---|---|---|---|
≤ 16 mm | 17-19 mm | ≥ 20 mm | |||
2 mg/L | 97 | 0.75-2 mg/L | 15 | 62 | 20 |
4 mg/L | 7 | 3-4 mg/L | 7 | - | - |
128 mg/L | 2 | > 32 mg/L | 2 | - | - |
≥ 256 mg/L | 2 | > 32 mg/L | 2 | - | - |