TABLE 4.
MIC (μg/ml) | No. of isolatesa
|
% Tolerant at MIC | |
---|---|---|---|
Tolerant | With the indicated MIC | ||
≤0.25 | 5 | 55 | 9.1 |
0.5 | 29 | 304 | 9.5 |
1 | 38 | 96 | 39.6 |
2 | 12 | 17 | 70.5 |
4 | 4 | 5 | 80.0 |
8 | 1 | 1 | 100.0 |
≥16 | 1 | 1 | 100.0 |
Total | 90 | 479 | 18.8 |
Tolerance is defined as an MBC-to-MIC ratio of ≥32 or MBC-to-MIC ratio of ≥16 and an MBC of ≥32 μg/ml. Boldface data are for isolates that are intermediate or resistant according to their MICs, in accordance with CLSI guidelines.