Table 3 Drug susceptibility patterns of the diarrheagenic E. coli (DEC)
Antibiotic class | Antibiotic tested | Susceptibility pattern | |||||
|---|---|---|---|---|---|---|---|
Sensitive | Intermediate | Resistant | |||||
N | % | N | % | N | % | ||
Penicillins | Amoxicillin | 6 | 2.1 | 2 | 0.7 | 282 | 97.2 |
Ampicillin | 8 | 2.8 | 2 | 0.7 | 280 | 96.6 | |
Ampicillin/sulbactam | 46 | 15.9 | 50 | 17.2 | 194 | 66.9 | |
Amoxicillin/clavulanate | 143 | 49.3 | 79 | 27.2 | 68 | 23.4 | |
Cephalosporin | Cefazolin | 218 | 75.2 | 4 | 1.4 | 68 | 23.4 |
Cefoxitin | 263 | 90.7 | 9 | 3.1 | 18 | 6.2 | |
Cefuroxime | 219 | 75.5 | 4 | 1.4 | 67 | 23.1 | |
Cefuroxime/axetii | 210 | 72.4 | 14 | 4.8 | 66 | 22.8 | |
Cefotaxime | 231 | 79.7 | 1 | 0.3 | 58 | 20.0 | |
Ceftriaxone | 231 | 79.7 | 0 | 0.0 | 59 | 20.3 | |
Ceftazidime | 231 | 79.7 | 0 | 0.0 | 59 | 20.3 | |
Cefepime | 231 | 79.7 | 0 | 0.0 | 59 | 20.3 | |
Carbapenems | Meropenem | 279 | 96.2 | 1 | 0.3 | 10 | 3.4 |
Monobactams | Aztreonam | 230 | 79.3 | 0 | 0.0 | 60 | 20.7 |
Macrolides | Erythromycin | 0 | 0.0 | 9 | 3.1 | 281 | 96.9 |
Tetracyclines | Doxycycline | 28 | 9.7 | 140 | 48.3 | 122 | 42.1 |
Tetracycline | 28 | 9.7 | 83 | 28.6 | 179 | 61.7 | |
Quinolone | Ciprofloxacin | 275 | 94.8 | 1 | 0.3 | 14 | 4.8 |
Ofloxacin | 275 | 94.8 | 1 | 0.3 | 14 | 4.8 | |
Chloramphenicol | Chloramphenicol | 200 | 69.0 | 23 | 7.9 | 67 | 23.1 |
Aminoglycosides | Amikacin | 281 | 96.9 | 0 | 0.0 | 9 | 3.1 |
Gentamicin | 235 | 81.0 | 5 | 1.7 | 50 | 17.2 | |
Kanamycin | 274 | 94.5 | 3 | 1.0 | 13 | 4.5 | |
Streptomycin | 32 | 11.0 | 0 | 0.0 | 258 | 89.0 | |
Sulfonamides | Trimethoprim/sulfamethoxazole (SXT) | 7.0 | 2.4 | 0.0 | 0.0 | 283 | 97.6 |
Nitrofurans | Nitrofurantoin | 192 | 66.2 | 74 | 25.5 | 24 | 8.3 |