TABLE 2.
Anti- microbial | MIC (μg/ml)a
|
Categorical interpretation
|
|||||||
---|---|---|---|---|---|---|---|---|---|
Range | 50% | 90% | No. of isolates
|
Staphylococcal breakpoint (μg/ml)b
|
|||||
S | I | R | S | I | R | ||||
Cefaclor | 0.125-0.75 | 0.38 | 1.65 | 25 | ≤8 | 16 | ≥32 | ||
Cefuroxime | 6-48 | 21.33 | 32 | 1 | 19 | 5 | ≤8 | 16 | ≥32 |
Cephalexin | 0.38-2 | 1.5 | 1.5 | 25 | ≤8 | 16 | ≥32 | ||
Ciprofloxacin | 0.032-0.38 | 0.094 | 0.094 | 25 | ≤1 | 2 | ≥4 | ||
Doxycycline | 0.094-0.38 | 0.23 | 0.34 | 25 | ≤4 | 8 | ≥16 | ||
Penicillin | <0.016-0.5 | 0.042 | 0.236 | 22 | 3 | ≤0.12 | ≥0.25 | ||
Tobramycin | 0.25-1.5 | 0.75 | 0.97 | 25 | ≤4 | 8 | ≥16 |
50 and 90%, MIC50 and MIC90, respectively.
NCCLS standard M100-S12.