Table 1 Antimicrobial susceptibility of S. Corvallis strains isolated from animal food samples
Antimicrobial class | Antimicrobial agent | No. of strains (%) (n = 63) | ||
|---|---|---|---|---|
Resistant | Intermediate | Susceptible | ||
Quinolones | Ciprofloxacin | 62 (98.4%) | 1 (1.6%) | 0 (0%) |
Nalidixic acid | 32 (50.8%) | / | 31 (49.2%) | |
Penicillins | Ampicillin | 14 (22.2%) | 11 (17.5%) | 38 (60.3%) |
Cephems | Cefotaxime | 1 (1.6%) | 0 (0%) | 62 (98.4%) |
Ceftriaxone | 1 (1.6%) | 0 (0%) | 62 (98.4%) | |
Carbapenems | Meropenem | 0 (0%) | 0 (0%) | 63 (100%) |
Aminoglycosides | Amikacin | 0 (0%) | 0 (0%) | 63 (100%) |
Kanamycin | 5 (7.9%) | 2 (3.2%) | 56 (88.9%) | |
Tetracyclines | Tetracycline | 58 (92.1%) | 0 (0%) | 5 (7.9%) |
Macrolides | Azithromycin | 1 (1.6%) | / | 62 (98.4%) |
Phenicols | Chloramphenicol | 30 (47.6%) | 1 (1.6%) | 32 (50.8%) |
Folate pathway inhibitors | Trimethoprim-sulfamethoxazole | 52 (82.5%) | / | 11 (17.5%) |