3Carol J C, Willie M R, Richard L W, et al. Protection of tur- keys from hemorrhagic enteritis with a recombinant fowl poxvir- us expressing the native hexon of hemorrhagic enteritis virus [J]. Avian Dis, 1999, 43(2): 234-244.
4Domermuth C H, Weston C R, Cowen B S, et al. Incidence and distribution of avian'adenovirus II splenomegaly of chickens[J]. Avian Dis, 1980, 24: 591-594.
5Kawamura H, Shimizu F, Tsubahara H. Avian adenovirus: Its properties and serological classification [J]. Natl Inst Anita Health Q (Tokyo), 1964, 4: 183-193.
6McFerran J B, Connor T J, Adair B M. Studies on the antigenic relationship between an isolate from the egg drop syndrome 1976 anda fowl adenovirus[J]. Avian Pathol, 1978, 7(4): 629- 636.
7Nathan M B, Duncan R B, Larsen C T, et al. Persistent infec- tion of turkeys with an avirulent strain of turkey hemorrhagic enteritis virus[J]. Avian Dis, 2009, 53(3): 370-375.
8Pierson F W, Fitzgerald S D. Hemorrhagic enteritis and related infections. In: Diseases of poultry[M], llth ed. Saif Y M, ed. Iowa State University Press, Ames,2003.
9Silke R, Jagdey M S. Immunopathogenesis of haemorrhagic en- teritis virus (HEV) in turkeys [J]. Developmental - Compara- tive Immunology, 2000, 24(2-3): 237-246.
10Sressh M, Sharma J M. Pathogenesis of type I1 avian adenovi- rus infection in turkeys: In vivo immune cell tropism and tissue distribution of thevirus[J]. J Virol, 1996, 70(1): 30-36.