Cloacael Carriage and Multidrug Resistance Escherichia coli O157:H7 from Poultry Farms, Eastern Ethiopia

Table 3

Antimicrobial resistance profiles of isolated E. coli O157:H7 from Haramaya University and Adele Poultry Farms.

Antimicrobial agents	Disc potency (µg)	Number of isolates	Susceptible (%)	Intermediate (%)	Resistant (%)
Amoxicillin	20	26	7 (26.92)	10 (38.46)	9 (34.61)
Ampicillin	10	26	0 (0.0)	2 (7.69)	24 (92.30)
Cefoxitin	30	26	2 (7.69)	2 (7.69)	22 (84.61)
Chloramphenicol	30	26	25 (96.15)	0 (0.0)	1 (3.84)
Ciprofloxacin	5	26	27 (100)	0 (0.0)	0 (0.0)
Clindamycin	30	26	0 (0.0)	1 (3.84)	25 (96.15)
Erythromycin	15	26	1 (3.84)	0 (0.0)	25 (96.15)
Gentamycin	10	26	23 (88.46)	1 (3.84)	2 (7.69)
Kanamycin	30	26	10 (38.46)	12 (46.15)	4 (15.38)
Nalidixic acid	30	26	16 (61.53)	3 (11.53)	6 (23.07)
Spectinomycin	30	26	18 (69.23)	8 (30.76)	0 (0.0)
Streptomycin	10	26	17 (65.38)	0 (0.0)	9 (34.61)
Tetracycline	30	26	2 (7.69)	4 (15.38)	20 (76.92)
Trimethoprim	5	26	24 (92.30)	0 (0.0)	2 (7.69)