Herpesvirus 1, SuidPseudorabiesPseudorabies VaccinesSwineAlphaherpesvirinaeViral Envelope ProteinsSwine DiseasesHerpesviridaeHerpesvirus 1, BovineViral ProteinsViral Plaque AssayVirionGenes, ViralCell LineViral Structural ProteinsViral VaccinesVirus ReplicationAntibodies, ViralVero CellsDNA, ViralHerpesvirus 1, CanidVirulenceParvovirus, PorcineNeutralization Tests