2Yu L,Song K,Zhang Y,et al. Cloning and expression of the VP2 gene of an infectious bursal disease virus [J]. Avian Dis, 2000.44:170-178.
3Fahey K J,O'Donnell L J,Bagust T J. Antibody to the 32K structural protein of infectious bursal disease virus neutralizes viral infectivity in vitro and confers protection on young chickens[J]. Journal of General Virology,1985,66:2693-2702.
4Mundt E. Tissue culture infectivity of different strains of infectious bursl disease virus if determined by distinct amino acids in VP2 [J ] .J Gen Virol, 1999,80 : 2067-2076.
5Boot H J,Terhuume A A,Hoekman A J.Rescue of very virulent and mosaic infectious bursal disease virus from cloned cDNA:VP2 is not the sole determinant of the very virulent phthotype[J].J Virol,2000,74(15) :6701-6711