3Tsukamoto K, Kojima C, Komori Y, et al. Protection of chickens against very virulent infectious bursal disease virus and MDV with a recombinant MDV expressing infectious bursal disease virus VP2[J].Virology, 1999,(257) : 352-362.
4Synder D B. Thymic lesions in chicken infected with infectious bursal disease virus[J]. Avian Disease , 1994,(38):829-846.
9Rogel A, Benvenisti L, Sela I, et al.Vaccination with E .coil recombi-nant empty viral particles of infectious bursal disease virus (IBDV) conferpro- tection[J].V irus Genes, 2003, 27(2):169-175.
10Lee CC,Ko TP,Lee MS,et al.Purification, crystal lization and prelimi-nary X-ray analysis of immunogenic virus-like particles formed by in- fec-tious bursal disease virus(IBl)V)structural pro- tein VP2.A cta CrystallogrBiol Crystallogr, 2003,59( 7): 1234-1237.