5[2]Rossow KD et al.Porcine reproductive and resporatory syndrome.Vet Patho,1998,35:1~20
6[5]Plana-Duran J,Batons M,Orniza A et al.Efficacy of an inactivated vaccine for prevention of reproductive failure induced by porcine reproductive and respiratory syndrome virus.Vet Microbiology,1997,55:361~370
6Rovira A, Balasch M,Segales J, et al. Experimental inoculation of conventional pigs with porcine reproductive and respiratory syndrome virus and porcine circo virus 2[J]. J Virol, 2002,76(7) :3232-3239.
7Mortensen S,Stryhn H,Sogaard R ,et al. Experimental inoculation of conventional pigs with porcine reproductive and respiratory syndrome virus and porcine circo virus 2[J]. Prev Vet Meal,2002,53(1-2) :83-101.
8Christopher-Henning J,Nelson A,Nelson J K,et al. Detection of porcine reproductive and respirtory syndrome virus in boar semen by PCR[J]. J Clin Microbiol, 1995,33(7) :1730-1734.
9Horter D C, Pogranichniy R M,Chang C C,et al. Characterization of the carrier state in porcine reproductive and respiratory syndrome virus infection[J]. Vet Microbiol,2002,86(3):213-228.
10H S Joo,B K Park,S A Dee,Indirect fluorescent IgM antibody res-ponse of pig infected with porcine reproductive and respirtory syndrome virus [J]. Vetrinary Microbiology, 1997, 55(1-4):303-307.