Table 3.
Antimicrobial resistance profiles of Salmonella Derby from pig production chain
| Resistance profilea | No. of isolates | % |
|---|---|---|
| Susceptible | 17 | 12.1 |
| NAL | 2 | 1.5 |
| STR | 10 | 7.1 |
| TET | 14 | 10.0 |
| CL-NAL | 2 | 1.5 |
| CL-TET | 2 | 1.5 |
| NAL-STR | 2 | 1.5 |
| NAL-TET | 3 | 2.1 |
| STR-TET | 70 | 50.0 |
| AMP-CL-NAL | 1 | 0.7 |
| AMP-NAL-TET | 1 | 0.7 |
| AMP-STR-TET | 2 | 1.5 |
| CL-STR-TET | 9 | 6.4 |
| NAL-STR-TET | 1 | 0.7 |
| AMP-CL-STR-TET | 2 | 1.5 |
| AMP-FLF-STR-TET | 1 | 0.7 |
| AMP-NAL-STR-TET | 1 | 0.7 |
| Total | 140 | 100 |
aAMP, ampicillin; CL, colistin; FLF, florfenicol; NAL, nalidixic acid; STR, streptomycin; TET, tetracycline