TABLE A1.
Panel of antimicrobial drugs to which susceptibility was determined and the dilution ranges and breakpoints used to determine the resistance of Salmonella enterica
| Antimicrobial(s) | Dilution range(s) (μg/ml)
|
Breakpoint(s) (μg/ml) | |
|---|---|---|---|
| Minimum | Maximum | ||
| Amikacin | 0.5 | 64.0 | ≥64.0 |
| Gentamicin | 0.25 | 16.0 | ≥16.0 |
| Kanamycin | 8.0 | 64.0 | ≥64.0 |
| Streptomycin | 32.0 | 64.0 | ≥64.0 |
| Ampicillin | 1.0 | 32.0 | ≥32.0 |
| Amoxicillin and clavulanic acid | 1.0 and 0.5 | 32.0 and 16.0 | ≥32.0 and ≥16.0 |
| Cefoxitin | 0.5 | 35.0 | ≥32.0 |
| Ceftiofur | 0.12 | 8.0 | ≥8.0 |
| Ceftriaxone | 0.25 | 64.0 | ≥64.0 |
| Ciprofloxacin | 0.015 | 4.0 | ≥4.0 |
| Nalidixic acid | 0.5 | 32.0 | ≥32.0 |
| Sulfisoxazole | 16.0 | 256.0 | ≥256.0 |
| Trimethoprim and sulfamethoxazole | 0.12 and 2.38 | 4.0 and 76.0 | ≥4.0 and ≥76.0 |
| Chloramphenicol | 2.0 | 32.0 | ≥32.0 |
| Tetracycline | 4.0 | 32.0 | ≥16.0 |