Table 4.
In vitro antibiotic susceptibility profile of the Listeria strains isolated from the effluents.
| Antibiotics | Number of isolates (%) | ||
|---|---|---|---|
| Susceptible | Intermediate | Resistant | |
| Amikacin (30 μg) | 23(100) | 0(0) | 0(0) |
| Gentamycin(10 μg) | 19(83) | 0(0) | 4(17) |
| Streptomycin(25 μg) | (15)65 | 0(0) | 8(35) |
| Chloramphenicol(30 μg) | 20(87) | 0(0) | 3(13) |
| Tetracyclin(30 μg) | 19(83) | 0(0) | 4(17) |
| Ciprofloxacin(5 μg) | 21(91) | 1(4.5) | 1(4.5) |
| Gatifloxacin(5 μg) | 19(83) | 2(8.5) | 2(8.5) |
| Moxifloxacin(5 μg) | 17(74) | 3(13) | 3(13) |
| Imipenem(10 μg) | 19(83) | 0(0) | 4(17) |
| Meropenem(10 μg) | 23(100) | 0(0) | 0(0) |
| Ertapenem(10 μg) | 23(100) | 0(0) | 0(0) |
| Ampicillin(30 μg) | 3(13) | 0(0) | 20(87) |
| Penicillin G(10 μg) | 1(4.5) | 1(4.5) | 21(91) |
| Linezolid(30 μg) | 18(78) | 0(0) | 5(22) |
| Aztreonam(30 μg) | 21(91) | 0(0) | 2(9) |
| Erythromycin(15 μg) | 4(17) | 0(0) | 19(83) |
| Cephalothin(30 μg) | 17(74) | 1(4) | 5(22) |
| Ceftriaxone(30 μg) | 21(91) | 1(4.5) | 1(4.5) |
| Sulphamethoxazole (25 μg) | 8(35) | 0(0) | 15(65) |
| Trimethoprim(5 μg) | 17(74) | 0(0) | 6(26) |