Research Article

Detection of Extended-Spectrum Beta-Lactamase-Producing Escherichia coli in Market-Ready Chickens in Zambia

Table 3

Antibiotic resistance patterns of E. coli isolates.

Antibiotic combinationNumber of resistant isolates%Observation

Ampicillin and tetracycline11.3Resistant to two antibiotics

Ampicillin, tetracycline, chloramphenicol, and ceftazidime33.9Resistant to four antibiotics

Ampicillin, ceftazidime, chloramphenicol, and norfloxacin33.9Resistant to four antibiotics

Ampicillin, chloramphenicol, cefotaxime, and sulfamethoxazole33.9Resistant to four antibiotics

Ampicillin, streptomycin, gentamicin, tetracycline, and cefotaxime911.7Resistant to five antibiotics

Ampicillin, streptomycin, tetracycline, cefotaxime, nalidixic acid, ceftazidime, norfloxacin, and ciprofloxacin3545.5Resistant to six antibiotics