Phenotypic and Molecular Characterisation of Extended-Spectrum Beta-Lactamase Producing Escherichia coli Obtained from Animal Fecal Samples in Ado Ekiti, Nigeria

Table 3

Antimicrobial sensitivity patterns of E. coli isolates based on the classes of antibiotics tested.

Class/antibiotics	Number of resistant isolates (%)	Number of intermediate isolates (%)	Number of sensitive isolates (%)
β-lactams
Penicillin	110 (96%)	04 (4%)	—
Amoxicillin	100 (88%)	14 (12%)	—
Ampicillin	102 (89%)	12 (11%)	—
Augmentin	110 (96%)	04 (4%)	—
Ceftazidime	66 (58%)	27 (24%)	21 (18%)
Cefotaxime	105 (92%)	9 (8%)	—
Cefixime	45 (39%)	42 (37%)	27 (24%)
Cefuroxime	95 (83%)	10 (9%)	8 (7%)
Cefpodoxime	66 (58%)	06 (5%)	42 (37%)
Tetracycline	100 (88%)	9 (8%)	4 (4%)
Erythromycin	94 (82%)	15 (13%)	5 (4%)
Streptomycin	90 (79%)	15 (13%)	9 (8%)
Gentamicin	56 (49%)	03 (3%)	55 (48%)
Ciprofloxacin	6 (5%)	6 (5%)	102 (90%)
Ofloxacin	6 (5%)	5 (4%)	103 (90%)
Cloxacillin	96 (84%)	18 (16%)	—
Cotrimoxazole	102 (90%)	12 (10%)	—
Nitrofurantoin	—	12 (11%)	102 (89%)
Chloramphenicol	105 (92%)	9 (8%)	—
Carbapenem
Imipenem	—	5 (4%)	109 (96%)