Genetic Characterization of Infectious Bursal Disease Viruses Associated with Gumboro Outbreaks in Commercial Broilers from Asyut Province, Egypt
Table 1
Nucleotide similarity (%) of the HVRs of VP2 of the examined strains with reference vvIBDV strains (OKYM (Japan), HK46 (Hong Kong), and UK661 (European).
Percent identity
1
2
3
4
5
6
7
8
9
10
Divergence
1
*
98.9
95.9
97.2
98.1
97.8
98.0
99.3
98.6
98.7
1
1
2
1.1
*
96.7
98.2
98.6
98.4
99.1
99.1
99.0
99.3
2
2
3
4.3
3.4
*
95.9
96.2
95.7
96.2
96.6
96.7
97.0
3
3
4
2.9
1.9
4.2
*
97.6
98.3
97.4
97.9
97.8
98.4
4
4
5
2.0
1.4
3.9
2.4
*
97.7
97.9
98.9
98.2
98.6
5
5
6
2.2
1.6
4.4
1.7
2.3
*
97.9
98.1
98.0
98.6
6
6
7
2.0
0.9
4.0
2.6
2.1
2.2
*
98.5
98.5
98.5
7
7
8
0.7
0.9
3.5
2.1
1.1
1.9
1.5
*
99.0
98.9
8
OKYM-D49706
9
1.5
1.0
3.4
2.2
1.8
2.0
1.5
1.0
*
98.9
9
Vv-HK46, AF051838
10
1.3
0.7
3.1
1.7
1.4
1.4
1.5
1.1
1.1
*
10
Vv-UK661, X92760
1
2
3
4
5
6
7
8
9
10
NB, it is mean the percent of identity is 100 or zero percent divergence between isolates.