Table-1.

Virulence genes detected in avian pathogenic Escherichia coli isolates.

Virulence factor	Frequency	Percentage	p-value
iroN	18/43	41.80	1.203×10−8***
iutA	6/43	13.90	4.482×10−15***
ompT	24/43	55.80	2.89×10−6***
iss	18/43	41.80	1.203×10−8***
hlyF	24/43	55.80	2.89×10−6***
papC	1/43	2.30	2.2×10−16***
felA	1/43	2.30	2.2×10−16***
frzorf4	6/43	13.90	4.482×10−15***
aec26	0	0	0
sitA	18/43	41.80	1.203×10−8***
No factor	18/43	41.80	1.203×10−8***

^***Very highly significant value. iutA (aerobactin siderophore receptor gene), hlyF (putative avian hemolysin), iss (episomal increased serum survival gene), iroN (salmochelin siderophore receptor gene), and ompT (episomal outer membrane protease gene), frz_orf4 (sugar metabolism), aec26 (component of a T6SS), sitA (iron transport gene)