Table 2 Activities of antimicrobial agents tested against of the listeria monocytogenes isolates (n = 24) recovered from the poultry carcasses examined
Antibiotic name | μg/ disc | Antibiotic class | resistant | intermediated | susceptible |
|---|---|---|---|---|---|
Penicillin (P) | 10 μg | β-lactams | 17 (70.83%) | 0 (0%) | 7 (29.16%) |
Amoxicillin-Clavulanic acid (AMC) | 20/10 μg | β-lactams | 14 (58.33%) | 3 (12.5%) | 7 (29.16%) |
Cefotaxime (CTX) | 30 μg | β-lactams | 11 (45.83%) | 3 (12.5%) | 10 (41.67%) |
Ceftazidime (CTZ) | 30 μg | β-lactams | 14 (58.33%) | 5 (20.83%) | 5 (20.83%) |
Amoxicillin (AX) | 30 μg | β-lactams | 17 (70.83%) | 2 (8.33%) | 5 (20.83%) |
Ciprofloxacin (CIP) | 5 μg | Fluoroquinolones | 12 (50%) | 3 (12.5%) | 9 (79.17%) |
Nalidixic acid (NA) | 30 μg | Fluoroquinolones | 12 (50%) | 5 (20.83%) | 7 (29.17%) |
Streptomycin (SM) | 10 μg | Aminoglycosides | 8 (33.33%) | 0 (0%) | 16 (66.67%) |
Gentamicin (GEN) | 10 μg | Aminoglycosides | 7 (29.16%) | 1 (4.17%) | 16 (66.67%) |
Erythromycin (E) | 15 μg | Macrolides | 5 (20.83%) | 0 (0%) | 19 (79.17%) |
Tetracycline (TET) | 30 μg | Tetracycline | 22 (91.67%) | 0 (0%) | 2 (8.33%) |
Oxytetracycline (T) | 30 μg | Tetracycline | 20 (83.33%) | 3 (12.5%) | 4 (16.67%) |
Vancomycin (VA) | 30 μg | Glycopeptides | 7 (29.17%) | 3 (12.5%) | 14 (58.33%) |
Chloramphenicol (C) | 30 μg | Chloramphenicol | 4 (16.67%) | 6 (25%) | 14 (58.33%) |