TABLE 1.
Genotypic characterization and microbroth dilution MICs for vancomycin-resistant E. faecium study isolates
| Strain | Genotype | MIC (μg/ml)
|
|||||
|---|---|---|---|---|---|---|---|
| Vancomycin | Quinupristin-dalfopristin | Ampicillin-sulbactam | Doxycycline | Chloramphenicol | Sparfloxacin | ||
| 1 | vanA | >32 | 0.5 | 64 | 8.0 | 8.0 | >8.0 |
| 2 | vanA | >32 | 1.0 | 128 | ≤0.125 | 16 | >8.0 |
| 3 | vanA | >32 | 0.5 | 128 | 8.0 | 8.0 | >8.0 |
| 4 | vanA | >32 | 0.5 | 16 | 8.0 | 8.0 | 0.5 |
| 5 | vanB | 16 | 1.0 | 16 | 4.0 | 8.0 | 0.5 |
| 6 | vanB | 8.0 | 0.5 | 32 | ≤0.125 | 8.0 | >8.0 |
| 7 | vanA | >32 | 0.5 | 64 | 8.0 | 8.0 | >8.0 |
| 8 | vanA | >32 | 0.25 | 64 | 8.0 | 8.0 | >8.0 |
| 9 | vanA | >32 | 1.0 | 16 | ≤0.125 | 8.0 | >8.0 |
| 10 | vanA | >32 | 4.0 | 4.0 | >16 | 8.0 | 1.0 |
| 11 | vanB | >32 | 0.25 | 64 | 8.0 | 8.0 | >8.0 |
| 12 | vanB | 8.0 | 0.5 | 64 | ≤0.125 | 8.0 | >8.0 |