Table 2.

Prevalence of E. coli O157:H7 from various samples collected at processing plants, retail markets and health centers in Ethiopia

Sample source	Sample type	No. of sample Examined	No. of positive	% Positive (95% CIa)
Processing plants	Fecal sample	370	7	1.89 (0.92, 3.85)
	Skin swab	370	2	0.54 (0.15, 1.95)
	Intestinal mucosal swab	370	3	0.81 (0.28, 2.26)
	Carcass internal swab	370	2	0.54 (0.15, 1.95)
	Carcass external swab	370	0	0
	Environmental swabs	62	0	0
Retail shops	Carcass	125	1	0.8 (0.14, 4.39)
	Hands	125	0	0
	Cutting board	125	1	0.8 (0.14, 4.39)
	Knife	125	0	0
Health centers	Stool	70	0	0

^aConfidence interval