Table 1.
Antimicrobial resistance spectrum and Multiple Antimicrobial Resistance (MAR) Index of Salmonella spp. isolates (Isolates susceptible to all the 13 antimicrobials tested were defined as fully susceptible).
| Resistance Profiles | No of Isolates | MAR Index |
|---|---|---|
| Fully susceptible | ||
| Total | 47 | ≤0.2 |
| Percentage | 47/78 (60.2%) | |
| Single resistance | ||
| AZM | 1 | ≤0.2 |
| AMP | 5 | ≤0.2 |
| CTX | 3 | ≤0.2 |
| TE | 2 | ≤0.2 |
| SXT | 2 | ≤0.2 |
| CN | 1 | ≤0.2 |
| Total | 14 | |
| Percentage | 14/78 (17.9%) | |
| Double resistance | ||
| AMP, TE | 1 | ≤0.2 |
| AZM, AMP | 2 | ≤0.2 |
| C, TE | 1 | ≤0.2 |
| AMP, CAZ | 1 | ≤0.2 |
| AMP, LEV | 1 | |
| Total | 6 | |
| Percentage | 6/78 (7.7%) | |
| MDR | ||
| C, SXT, TE | 3 | ≥0.2 |
| CN, AMP, TE | 1 | ≥0.2 |
| SXT, AMP, TE | 1 | ≥0.2 |
| SXT, TE, CAZ | 1 | ≥0.2 |
| F, AZM, TE | 1 | ≥0.2 |
| C, SXT, AMP | 1 | ≥0.2 |
| CN, C, AMP, LEV | 1 | ≥0.2 |
| F, AZM, AMP, TE | 1 | ≥0.2 |
| CN, LEV, AZM, SXT, AMP, TE | 1 | ≥0.2 |
| Total | 11 | |
| Percentage | 11/78 (14.1%) |
Legend: AMP: Ampicillin, AZM: Azithromycin, CTX: Cefotaxime, TE: Tetracycline, CN: Gentamicin SXT: Sulphamethoxazole-Trimethoprim, C: Chloramphenicol, CAZ: Ceftazidime, LEV: Levofloxacin, F: Nitrofurantoin.