Table-2.

Serogroups of avian pathogenic E. coli.

Number of strains (n=73)	Type of samples	Serodiagnosis	Percentages
13	Lungs (4), spleen (4), heart (3), intestinal content, liver	O78	17.8
7	Lungs (2), spleen (2), heart, liver, intestinal content	O2:H6	9.5
7	Lungs (2), heart (3), spleen (2)	O1:H7	9.5
4	Heart (2), lungs, liver	O91:H21	5.4
4	Spleen, heart, lungs (2)	O8:H21	5.4
3	Spleen, lungs, liver	O114:H4	4
3	Lungs (2), heart	O126:H21	4
3	Heart, spleen, lungs	O26:H11	4
3	Spleen, liver, lungs	O145	4
3	Spleen, liver, heart	O44:H18	4
2	Intestinal contents, liver	O166	2.7
2	Lungs, heart	O117:H7	2.7
2	Intestinal contents, lungs	O55:H7	2.7
2	Liver (2)	O111:H2	2.7
2	Heart, spleen	O124	2.7
2	Spleen, heart	O158	2.7
2	Lungs, heart	O128:H2	2.7
1	Lungs	O153:H2	1.3
1	Liver	O119:H6	1.3
1	Spleen	O63	1.3
1	Spleen	O15:H2	1.3
1	Lungs	O159:H21	1.3
1	Spleen	O171:H2	1.3
1	Spleen	O146:H21	1.3
1	Lungs	O6:H4	1.3
1	Liver	O121:H7	1.3

E. coli=Escherichia coli