Table 4.
Antibiotic susceptibilities changes of strains.
| Cluster | Straina | MIC (μg/mL) | Antibiotic susceptibility | E-test MIC (μg/mL) | ||||
|---|---|---|---|---|---|---|---|---|
| OXA | RIF | TEI | OXA | RIF | TEI | |||
| C1 | S15 | 1.5 | S | S | S | 1 | 0.064 | 2 |
| S1560 | 16 | S | R | I | 0.5 | >256 | 16 | |
| S16 | 1.5 | S | R | S | 1 | >256 | 4 | |
| S1660 | 16 | S | R | R | 0.5 | >256 | 16 | |
| S41 | 1 | S | S | S | 0.5 | 0.064 | 1 | |
| S4160 | 16 | S | S | S | 0.5 | 0.064 | 8 | |
| S28 | 1.5 | S | S | S | 0.25 | 0.064 | 4 | |
| S2860 | 14 | S | S | I | 0.25 | 0.064 | 16 | |
| C2 | S8 | 1.5 | S | S | S | 0.5 | 0.064 | 2 |
| S860 | 16 | S | S | I | 0.5 | 0.064 | 16 | |
| S9 | 1.5 | S | S | S | 0.25 | 0.064 | 2 | |
| S960 | 12 | S | S | I | 0.25 | 0.064 | 16 | |
| S32 | 1.5 | S | S | S | 0.125 | 0.064 | 2 | |
| S3260 | 12 | S | S | I | 0.125 | 0.064 | 16 | |
| C3 | S3 | 1.5 | R | R | S | >256 | >256 | 1 |
| S360 | 10 | R | R | S | 32 | >256 | 8 | |
| S34 | 0.5 | R | S | S | 32 | 0.064 | 0.5 | |
| S3460 | 6 | R | S | S | 8 | 0.064 | 4 | |
| S35 | 1.5 | S | S | S | 0.25 | 0.064 | 1 | |
| S3560 | 12 | S | R | S | 0.5 | >256 | 8 | |
| S37 | 1 | R | S | S | >256 | 1 | 0.5 | |
| S3760 | 8 | R | R | S | 4 | 4 | 8 | |
| C4 | S2 | 1.5 | S | S | S | 0.125 | 0.064 | 2 |
| S260 | 3 | S | S | S | 0.25 | 0.064 | 2 | |
| S5 | 1.5 | S | S | S | 0.125 | 0.064 | 1 | |
| S560 | 4 | S | S | S | 0.125 | 0.064 | 2 | |
| S11 | 1 | S | S | S | 0.5 | 0.064 | 0.064 | |
| S1160 | 8 | S | S | S | 0.5 | 0.064 | 8 | |
| C5 | S10 | 1 | S | S | S | 0.25 | 0.064 | 1 |
| S1060 | 1 | S | S | S | 0.25 | 0.064 | 1 | |
OXA, oxacillin; RIF, rifampicin; TEI, teicoplanin. S, susceptible; I, intermediate; R, resistant.
a
No subscript represents parental strains.
Subscript indicates strains treated by vancomycin for 60 days.