Table 11.

Results of the antibiotic sensitivity test of E. coli isolated from human samples.

Antibiotic disks	Total no. of E. coli isolates	Resistant		Sensitive		Intermediate
		No.	%	No.	%	No.	%
Cefradine	35	17	48.5d	18	51.5b	0	0.0d
Ciprofloxacin	35	9	25.7e	25	71.4a	1	2.9c
Oxytetracycline	35	24	68.6c	9	25.7c	2	5.7b
Erythromycin	35	35	100.0a	0	0.0f	0	0.0d
Amoxicillin	35	27	77.1b	6	17.1e	2	5.7b
Ampicillin	35	24	68.6c	7	20.0d	4	11.4a
Streptomycin	35	8	22.9f	25	71.4a	2	5.7b
p-value		0.000**		0.000**		0.000**

^a,b,c Means in the same column bearing different superscripts are significantly different.

^**Significant differences at p=0.01. E. coli=Escherichia coli