| Antimicrobial subclass | Antimicrobial agents | No. of resistant isolates (Antimicrobial resistance %) | ||
|---|---|---|---|---|
| Before | After (n = 79) | Total (n = 144) | ||
| | ||||
| Aminoglycosides | Gentamicin | 46 (70.8) | 34 (43.0) | 80 (55.6) |
| Streptomycin | 47 (72.3) | 67 (84.8) | 114 (79.2) | |
| Neomycin | 51 (78.5) | 49 (62.0) | 100 (69.4) | |
| Cephalosporin I | Cephalothin | 41 (63.1) | 41 (51.9) | 82 (56.9) |
| Cefazolin | 28 (43.1) | 16 (20.3) | 44 (30.6) | |
| Cephalosporin IV | Cefepime | - | - | - |
| Cephamycin | Cefoxitin | 26 (40.0) | 10 (12.7) | 36 (25.0) |
| Quinolones | Nalidixic acid | 48 (73.8) | 47 (59.5) | 95 (66.0) |
| Fluoroquinolone | Ciprofloxacin | 37 (56.9) | 27 (34.2) | 64 (44.4) |
| Norfloxacin | 37 (56.9) | 24 (30.4) | 61 (42.4) | |
| Aminopenicillin | Ampicillin | 53 (81.5) | 71 (89.9) | 124 (86.1) |
| β-Lactam / β-lactamase-inhibitor combination | Amoxicillin / Clavulanic acid | 34 (52.3) | 45 (57.0) | 79 (54.9) |
| Folate-pathway inhibitors | Trimethoprim / Sulfamethoxazole | 46 (70.8) | 36 (45.6) | 81 (56.3) |
| Phenicols | Chloramphenicol | 57 (87.7) | 71 (89.9) | 128 (88.9) |
| Polymyxins | Colistin | 2 ( 3.1) | 13 (16.5) | 15 (10.4) |
| Tetracyclines | Tetracycline | 56 (86.2) | 77 (97.5) | 133 (92.4) |