TABLE 2.

Variation of amino acids in the linear epitope and its flanking regions

Mutation group	Amino acid change(s)	NDV strain(s)	No. of strains
I	G362R	SNU0164	1
II	N323D, E347K	SNU2026, SNU2028, SNU3058, SNU6052	4
III	E347K, G362R	SNU5070, SNU6014	2
IV	N323D, E347K, M354K	SNU2124, KBNP-4152, SNU5005, SNU5009, SNU5062, SNU5063, SNU5064, SNU5065, SNU5074, SNU5076, SNU5081	11
V	N323D, E347K, M354K, K360E	SNU2108	1
VI	N323D, E347K, M354K, G365D	SNU5079, SNU5082, SNU5084, SNU5085, SNU5100	5