Table 3.
Distribution of resistance phenotypes and antimicrobial resistance genes detected in InPEC and ExPEC isolates
| Antimicrobial classes | Antimicrobial agents | APEC(n = 58) | Resistance genes | |
|---|---|---|---|---|
| InPEC | InPEC | (n = 58) | ||
| (n = 48) | (n = 10) | |||
| β-lactamases | Cefepime | 4 (8.33) | 1 (10.00) |
TEM(1, 1.72%) SHV(24, 41.38%) OXA(3, 5.17%) CTX-M(33,56.9%) |
| Cefotaxime | 12 (25.00) | 3 (30.00) | ||
| Ceftazidime | 8 (16.67) | 2 (20.00) | ||
| cephalothin | 12 (25.00) | 4 (40.00) | ||
| cefuroxime | 11 (22.92) | 3 (30.00) | ||
| piperacillin | 13 (27.08) | 4 (40.00) | ||
| Cefoxitin | 3 (6.25) | 1 (10.00) | ||
| Aztreonam | 7 (14.58) | 2 (20.00) | ||
| Aminoglycosides | Amikacin | 2 (4.17) | 0 (0.00) |
strA(48, 82.76%) strB(31, 53.45%) aadA (1, 1.72%) |
| Kanamycin | 16 (33.33) | 5 (50.00) | ||
| Streptomycin | 42 (87.50) | 7 (70.00) | ||
| Gentamicin | 9 (18.75) | 6 (60.00) | ||
| Spectinomycin | 6 (12.50) | 2 (20.00) | ||
| Fluoroquinolones/Quinolones | Ciprofloxacin | 13 (27.08) | 3 (30.00) |
gyrA(S83L) (36, 62.06%) gyrA(D87N) (17, 29.31%) |
| Enrofloxacin | 12 (25.00) | 3 (30.00) | ||
| Nalidixic acid | 30 (62.50) | 8 (80.00) | ||