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Evidence of vancomycin tolerance at each MIC
| MIC (μg/ml) | No. of isolatesa
|
% Tolerant at MIC | |
|---|---|---|---|
| Tolerant | With the indicated MIC | ||
| ≤0.25 | 0 | 2 | 0.0 |
| 0.5 | 1 | 120 | 0.8 |
| 1 | 26 | 348 | 7.5 |
| 2 | 2 | 7 | 28.6 |
| 4 | 0 | 2 | 0.0 |
| 8 | 0 | 0 | 0.0 |
| ≥16 | 0 | 0 | 0.0 |
| Total | 29 | 479 | 6.1 |
Tolerance was defined as an MBC-to-MIC ratio of ≥32 or an MBC-to-MIC ratio of ≥16 and an MBC of ≥16 (μg/ml). Boldface data are for isolates that are intermediate or resistant according to their MICs, in accordance with CLSI guidelines.
