4Siegl G. The parvoviruses. Virol Monogr 1976; 15: 1-109 [PMID: 181899].
5Bachmann PA, Hoggan MD, Kurstak E, Melnick JL, Pereira HG, Tattersall P, Vago C. Parvoviridae: second report. Interoirology 1979; 11: 248-254 [PMID: 372134 DOl: 10.1159/000149041].
6Zeeuw E J, Leinecker N, Herwig V. Study of the virulence and cross-neutralization capability of recent porcine parvovirus field isolates and vaccine viruses in experimentally infected pregnant gilts. J Gen Virol 2007; 88: 420-427[PMID: 17251558 DOl: 10.1099/vir.0.82302-0].
7Kerr JR, Cotmore SF, Bloom ME, Linden RM, Par?rish CR. Parvoviruses. London: Edward Arnold Publishers Ltd., 2006: 5-14.
8Bachmann PA, Sheffy BE, Vauhan JT. Experimental in utero infection of fetal pigs with a porcine parvo?virus. Infect Immun 1975; 12: 455-460 [PMID: 1165118].
9Mengeling WL, Cutlip RC. Pathogenesis of in utero infection: experimental infection of five-week-old porcine fetuses with porcine parvovirus. Am J Vet Res 1975; 36: 1173-1177 [PMID: 1098529].
10Wilhelm S, Zeeuw EJ, Selbitz HI, Truyen U. Tissue distribution of two field isolates and two vaccine strains of porcine parvovirus in foetal organs after experimental infection of pregnant sows as deter?mined by real-time PCR. J Vet Med B Infect Dis Vet Public Health 2005; 52: 323-326 [PMID: 16316393 DOl: 10.1111/j.1439-0450.2005.00878.x].