| Antimicrobial agents | No. of E. coli isolates (n = 25) | ||
| R | I | S | |
| Ampicillin | 24 | - | 1 |
| Amoxicillin/clavulanic | 23 | - | 2 |
| Ceftriaxone | 22 | - | 3 |
| Ceftazidime | 19 | 4 | 2 |
| Cefepime | 1 | 1 | 23 |
| Imipenem | - | - | 25 |
| Erythromycin | 10 | 1 | 14 |
| Gentamicin | 13 | - | 12 |
| Tobramycin | 5 | 3 | 17 |
| Ciprofloxacin | 12 | 5 | 8 |
| Norfloxacin | 10 | 5 | 10 |
| Chloramphenicol | 9 | 7 | 9 |