Table 5 Overall status of antibiotic resistance among the gram-positive and gram-negative isolates
Antibiotics tested | Gram-negative | Gram-positive | ||
|---|---|---|---|---|
R | R % | R | R % | |
Beta-lactam antibiotics | ||||
 Amoxicillin | 38 | 100.0 | 7 | 87.5 |
 Oxacillin | 11 | 91.7 | 8 | 100.0 |
 Cefotaxime | 33 | 80.5 | 5 | 62.5 |
 Meropenem | 4 | 11.8 | 2 | 40.0 |
 Piperacillin-Tazobactam | 9 | 47.4 | 1 | 33.3 |
 Ampicillin-Sulbactam | 2 | 66.7 | 1 | 100.0 |
 Imipenem | 1 | 8.3 | – | – |
 Aztreonam | 1 | 50.0 | – | – |
Non-beta-lactam antibiotics | ||||
 Amikacin | 21 | 50.0 | 5 | 45.5 |
 Gentamicin | 24 | 60.0 | 7 | 50.0 |
 Tobramycin | 1 | 50.0 | 1 | 100.0 |
 Chloramphenicol | 29 | 70.7 | 6 | 46.2 |
 Ciprofloxacin | 25 | 62.5 | 8 | 61.5 |
 Ofloxacin | 18 | 47.4 | 9 | 64.3 |
 Linezolid | – | – | 0 | 0.0 |
 Vancomycin | 2 | 66.7 | 0 | 0.0 |
 Tigecycline | 3 | 14.3 | – | – |
 Cotrimoxazole | 1 | 33.3 | – | – |
 Colistin | 6 | 17.6 | 3 | 100.0 |
 Teicoplanin | 1 | 50.0 | – | 87.5 |