Table 2 Resistant rates for various antibiotic classes and the resistance prevalence of antimicrobials in E. coli isolates, categorized by host
Antimicrobials classes | Poultry (%) (n = 337) | Swine (%) (n = 608) | P-value | Antimicrobial agents | Poultry (%) (n = 337) | Swine (%) (n = 608) | P-value |
|---|---|---|---|---|---|---|---|
Penicillins | 75.3 | 85.9 | < 0.001 | Ampicillin | 75.3 | 85.9 | < 0.001 |
β-lactam combination agents | 48.7 | 42.3 | NS | Amoxicillin/clavulanic acid | 48.7 | 42.3 | NS |
Cephalosporins | 23.1 | 22.5 | NS | Ceftiofur | 23.1 | 22.5 | NS |
Ceftazidime | 6.3 | 1.9 | 0.012 | ||||
Carbapenems | 0.0 | 0.3 | NS | Meropenem | 0.0 | 0. 3 | NS |
Aminoglycosides | 46.3 | 70.4 | < 0.001 | Spectinomycin | 46.6 | 65.7 | < 0.001 |
Gentamicin | 19.2 | 37.2 | < 0.001 | ||||
Tetracyclines | 86.4 | 91.8 | 0.008 | Doxycycline | 71.3 | 85.9 | < 0.001 |
Tetracycline | 86.1 | 91.6 | 0.007 | ||||
Phenicols | 76.6 | 92.6 | < 0.001 | Florfenicol | 76.6 | 92.6 | < 0.001 |
Sulfonamides | 85.2 | 87.2 | NS | Sulfaisoxazole | 82.8 | 85.4 | NS |
Sulfamethoxazole | 71.5 | 75.2 | NS | ||||
Fluoroquinolones | 52.5 | 43.3 | 0.006 | Enrofloxacin | 49.8 | 41.3 | 0.027 |
Ofloxacin | 46.3 | 39 | 0.029 | ||||
Polymyxins | 7.7 | 21.9 | < 0.001 | Colistin | 7.7 | 21.9 | < 0.001 |