Table 4.

Prevalence rates of E. coli isolates from poultry samples.

Sample source	Total no. of examined samples	Recovered isolates of E. coli
		No.	%
Cairo	50	17	34e
Giza	50	18	36d
Fayoum	50	20	40b
Beni Suef	50	19	38c
Menofia	50	17	34e
Alexandria	50	20	40b
Qalyubia	50	21	42a
Total	350	132	37.7
p-value		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