Table 5.
Antimicrobial resistance of Listeria species isolated from raw dressed broilers (n = 23).
| (Disc Diffusion) n = 23 | (Etest) n = 23 | |||||
|---|---|---|---|---|---|---|
| Antibiotics | R (%) | I (%) | S (%) | R (%) | I (%) | S (%) |
| Penicillin G | 8 (35) | 14 (61) | 1 (4) | 1 (4) | 2 (9) | 20 (87) |
| Imipenem | - | - | - | 0.0 | 14 (61) | 9 (39) |
| Gentamicin | 2 (9) | 2 (9) | 19 (82) | 0 | 0 | 100 |
| Levofloxacin | 3 (13) | - | 20 (87) | 0 | 0 | 100 |
| Trimethoprim/sulfamethoxazole | 8 (33) | 0 | 15 (65) | 0.0 | 1 (4) | 22 (96) |
| Clindamycin | 13 (57) | 2 (9) | 8 (35) | 14 (61) | 0 | 9 (39) |
| Erythromycin | 5 (22) | 2 (9) | 16 (70) | 5 (22) | 10 (42) | 9 (38) |
| Vancomycin | - | - | - | 0 | 0 | 100 |
| Chloramphenicol | 3 (13) | 0 | 20 (87) | 0 | 0 | 100 |
| Tetracycline | 13 (57) | 3 (13) | 7 (30) | 7 (30) | 1(4) | 15 (65) |
(R) means resistance, (I) means intermediate, and (S) means susceptible.