4TONG G Z, ZHOU Y J, HAO X F, et al. Highly pathogenic porcine reproductive and respiratory syndrome, China [J].Emerg Infect Dis, 2007,13(9) : 1434-1436.
5ZHOU Y J,HAO X F,TIAN Z J,etal. Highly virulent porcine reproductive and respiratory syndrome virus emerged in China [J]. Transbound Emerg Dis, 2008,55 (3/4):152-164.
6POL J M,VAN DIJK J E,WENSVOORT G,et al. Pathological,ultrastructural,and immunohistochemical changes caused by Lelystad virus in experimentally induced infections of mystery swine disease(synonym: porcine epidemic abortion and respiratory syndrome) [J]. Vet Q, 1991,13 (3) : 137-143.
7SUR J H,DOSTER A R,CHRISTIAN J S,et al. Porcine reproductive and respiratory syndrome virus replicates in testicular germ cells, alters spermatogenesis, and induces germ cell death by apoptosis[J]. J Virol, 1997,71(12) :9170-9179.
8KIM H S,KWANG J, YOON I J, et al. Enhanced replication of porcine reproductive and respiratory syndrome (PRRS) virus in a homogeneous subpopulation of MA-104 cell line [J]. Arch Virol, 1993,133(3/4) :477-483.
9Keffaber K K. Reproductive failure of unknown etiolog[J]. ASSP Newstett, 1989(1): 1-9.
10Elvander M L. Nationwide surveys of TGE/PRCV, CSF, PRRS, SDV, L. Pomona and B. suis in pigs in Sweden[J]. Epidemiol Sante Anita, 1997, 39(7b): 31-32.
