Table 2.
Antibiotic resistance of strains and correlation with antibiotic resistance gene content
| Strain | MIC (mg/liter) ofa: |
HLARb |
Resistance gene content | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| AMP | SAM | ERY | CLI | TET | LVX | TEC | VAN | GEN | STR | ||
| E030 | 8 | ≤2 | 1 | ≤0.25 | ≥16 | 4 | ≤0.5 | 1 | No | No | blaZ-blaI-blaR1 tet(M) |
| C236 | 16 | 4 | ≥8 | ≥8 | ≥16 | ≥8 | ≤0.5 | ≤0.5 | Yes | Yes | blaZ-blaI-blaR1 erm(B) tet(M) aadE aphA3 aph(2″)-1b |
| E032 | 16 | 4 | 4 | ≤0.25 | 2 | ≥8 | 4 | 1 | No | No | blaZ-blaI-blaR1 |
| E031 | 8 | ≤2 | ≤0.25 | ≤0.25 | 2 | ≥8 | ≤0.5 | 1 | Yes | Yes | blaZ-blaI-blaR1 aadE aphA3 aph(2″)-1b vanB2 |
| E029 | 16 | 8 | ≥8 | ≥8 | ≤1 | ≥8 | ≤0.5 | 1 | Yes | Yes | blaZ-blaI-blaR1 erm(B) aadE aphA3 aph(2″)-1b |
| F13 | ≥32 | 16 | ≥8 | ≥8 | ≤1 | ≥8 | ≤0.5 | ≤0.5 | Yes | Yes | blaZ-blaI-blaR1 erm(B) aadE aphA3 aph(2″)-1b vanB2 |
| F14 | ≥32 | 16 | ≥8 | ≥8 | ≤1 | ≥8 | ≤0.5 | ≤0.5 | Yes | Yes | blaZ-blaI-blaR1 erm(B) aadE aphA3 aph(2″)-1b vanB2 |
| G90 | ≥32 | 32 | ≥8 | ≥8 | ≤1 | ≥8 | 2 | 8 | Yes | Yes | blaZ-blaI-blaR1 erm(B) aadE aphA3 aph(2″)-1b vanB2 |
a
AMP, ampicillin; SAM, ampicillin-sulbactam; ERY, erythromycin; CLI, clindamycin; TET, tetracycline; LVX, levofloxacin; TEC, teicoplanin; VAN, vancomycin.
b
HLAR, high-level aminoglycoside resistance.