1Boit G.Genetic diversity of the attachment (H) protein gene of c urrent f ield isolates of canine distemper virus[J]．J Gen Virol,1997,78:367～372 .
2Camila P M.protection of dogs against canine distemper by vaccinat ion with a canarypox virus recombinant expressing canine distemper virus fusion and hem agglutinin glycoproteins[J].AJVR,1997,(58)8:833～836.
3Appel M J G,Summer B A.Pathogenicity of morbi-liviruses for ter resttial carnivores[J].Vet Microbiol.1995,44:187～191.
4Wild T F.Mode of entry of morbilliviruses[J].Vet Microbiol,1995, 44:267～270.
5Gaskin J M.Canine distemper virus in domesticated cats and pigs[J].Adv Enzymol Relat Areas Mol Biol,1974,40(0):803～806.
6Carpenter M A,Appel M J,Roelke Parker M E,et al.Genetic character ization of canine distemper virus in Serengeti carnivores[J].Vet Immunol Immunopathol ,1998,65(2～4):259～266.
7Appel M J,Yates R A,Foley G L,et al.Canine distemper epizootic in lions,t igers,and leopards in North Americal[J].J Vet Diagn Invest,1994,6(3):27 7～288.
8Appel M J.Virus infections of carnivores[J].Elsevier,1987,371～378.
9Mainka S A,Qiu X,He T,et al. Serologic survey of giant pandas(Ai luropoda melanoleuca)and domestic dogs and cats in the Wolong Reserve,China[J].J Wil dl Dis,1994,30(1):86～89.
10Svansson V,Blixenkrone Moller M,Skirnisson K,et al.Infection studies with canine distemper virus in harbour seals[J].Arch Virol,1993,131(3～4):34 9～359.
