10Handel K, Kehler H, Hills K, et al. Comparison of reverse transcripatase polymerase chain reaction,virus isolation,and immunoperoxidase assays for detecting pigs infected with low,moderate, and high virulent strains of classical swine fever virus[J]. J. Vet. Diagn. Invest., 2004,16(2):132-138.
8Carbrey EA,Stewart WC,Yong SH.The changing picture of hog cholera:case studies[J].J AM Vet Med Assoc,1966,149(12):1724.
9Terpstra C.Hog cholera:an update of present knowledge[J].Br Vet J,1991,147:397-406.
10Dahle J,Liess B.Comparitive study with cloned classical swine fever virus strains ALFORT and GLENTORF:clinical,patho-logical,virological and serological finding in weaner pigs[J].Berl Munch Tierarztl Wochenschr,1995,108:20-25.
4Bautista E,Molitor I.IFN gamma inhibits porcine reproductive and respiratory syndrome virus replication in macrophages[J].Arch Virol,1999,14(4):1191.
5Harms P A,Halbur P G,Sorden S D.Three cases of porcine respiratory disease complex associated with porcine circovirus type 2 infection[J].Swine Health Prod,2002,(10):27-30.
6Kim J,Chae C.Optimal enhancement of insitu hybridization for the detection of porcine circovirus 2 in formalin-fixed,paraffin-wax-embedded tissues using a combined pretreatment of thermocycler and proteinase[J].Res Vet Sci,2003(74):235-240.
7Cho J G,Dee S A.Porcine reproductive and respiratory syndrome virus[J].Theriogenology,2006,66(3):655-662.
8Clavijo A,Lin M,Riva J,et al.Application of competitive enzymelinked immunosorbent assay for the serologic diagnosis of classical swine fever virus infection[J].J Vet Diagn Invest,2001,13(4):357-360.
9Wensvoort G C,Terpstra C.Antigenic Differentiation of pestivirus Strains with monoclonal Ant-ibodies against hog cholera virus[J].Vet Microbiol,1989,21:9-20.
10Nawagltgul P,Harms P A,Morozov I,et al.Modified indirect porcine circovirus(PCV)type2 based and recombinant Capsid protein (ORF2)-based Enzyme linked immunosorbent assays for detection of antibodies to PCV[J].Clin Diagn Lab immunol,2002,9(1):33-40.