Research Article
Occurrence of Virulence Genes and Antimicrobial Resistance of E. coli O157:H7 Isolated from the Beef Carcass of Bahir Dar City, Ethiopia
Table 4
Antimicrobial susceptibility profile of E. coli O157:H7 isolated from carcass swab samples.
| | Drugs | Concentration (µg) | Frequency of resistance and susceptible E. coli O157:H7 isolates | | Resistant | Intermediate | Susceptible |
| | Oxytetracycline | 30 | 0 (0%) | 0 (0%) | 25 (100%) | | Tetracycline | 30 | 0 (0%) | 0 (0%) | 25 (100%) | | Sulphonamides | 30 | 0 (0%) | 0 (0%) | 25 (100%) | | Ampicillin | 10 | 0 (0%) | 0 (0%) | 25 (100%) | | Ciprofloxacin | 5 | 0 (0%) | 0 (0%) | 25 (100%) | | Neomycin | 10 | 0 (0%) | 0 (0%) | 25 (100%) | | Clindamycin | 10 | 25 (100%) | 0 (0%) | 0 (0%) | | Trimethoprim | 5 | 3 (12%) | 0 (0%) | 22 (88%) | | Norfloxacin | 10 | 0 (0%) | 0 (0%) | 25 (100%) | | Streptomycin | 25 | 0 (0%) | 3 (12%) | 22 (88%) | | Chloramphenicol | 10 | 0 (0%) | 0 (0%) | 25 (100%) |
|
|
