3Pratelli A, Cavalli A, Martella V, et al. Canine Parvovirus (CPV) Vaccination:Comparison of Neutralizing Antibody Responses in Pups after Inoculation with CPV2 or CPV2b modified live virus vaccine[ J]. Virology,2001,8(4) :612 -615.
4Chalmers W S,Truyen U,Greenwood N M,et al. Efficacy of feline panleucopenia vaccine to prevent infection with an isolate of CPV2b obtained from a cat[ J]. Vet Microbiol, 1999,69:41 -45.
5寥延雄.兽医微生物试验诊断手册[M].北京:中国农业出版社.1995:81-114.
6Turiso J A, Cortes E, Ranz A, et al. Fone mapping of canine par- vovirus B cell epitopes [ J ]. J Gen Virol, 1991,72:2445 -2456.