Table 4.
Resistance patterns of E. coli O157:H7 isolates form Haramaya University and Adele Poultry Farms against 14 antimicrobial agents.
| Antimicrobials | E. coli O157:H7 | |
|---|---|---|
| Frequency | % | |
| E, K | 1 | 4.16 |
| E, TE | 2 | 8.33 |
| E, C | 1 | 4.16 |
| E, CLI | 1 | 4.16 |
| E, SPT | 1 | 4.16 |
| E, AMP | 2 | 8.33 |
| E, FOX | 1 | 4.16 |
| E, CLI, TE | 1 | 4.16 |
| E, K, TE | 1 | 4.16 |
| CN, E, TE | 1 | 4.16 |
| E, C, CLI, AMP | 3 | 12.5 |
| E, FOX, C, AML | 1 | 4.16 |
| E, CLI, C, AMP | 1 | 4.16 |
| E, S, C, AML | 1 | 4.16 |
| E, AMP, TE, AML | 1 | 4.16 |
| CN, E, S, AMP | 1 | 4.16 |
| E, CLI, K, AMP, FOX, C, TE, AML | 2 | 8.33 |
| E, CLI, K, AMP, C, TE, TRI, AML | 1 | 4.16 |
| E, S, K, NAL, CLI, C, TE, TRI, AML | 1 | 4.16 |
|
| ||
| Total | 24 | 92.30 |
E: erythromycin, S: streptomycin, Nal = nalidixic acid, K: kanamycin, AMP: ampicillin, TE: tetracycline, RIT: trimethoprim, AML: amoxicillin, CIP: ciprofloxacin, CN: gentamycin, FOX: cefoxitin, C: chloramphenicol, and SPT: spectinomycin.