Mammary Tumor Virus, MouseVaccinia virusTumor Virus InfectionsPolyomavirusRetroviridae InfectionsVacciniaVirus ReplicationRNA VirusesViral ProteinsGenes, ViralCell LineVirus CultivationReceptors, VirusOncogenic VirusesDNA, ViralAntigens, ViralRNA, ViralMolecular Sequence DataVirus DiseasesVirus AssemblyPoxviridaeVirus SheddingSimian virus 40Cowpox virusVariola virusDefective VirusesAntibodies, ViralDNA VirusesPlant VirusesMeasles virusCercopithecus aethiopsInfluenza A Virus, H1N1 SubtypeSindbis VirusViral Plaque AssayRespiratory Syncytial VirusesHeLa CellsRabies virusInfluenza A Virus, H5N1 SubtypeVirionNeutralization TestsPoxviridae InfectionsGenetic VectorsGene Expression Regulation, ViralAmino Acid SequenceSmallpoxAntiviral AgentsVero CellsWest Nile virusHepatitis B virusMammary Neoplasms, ExperimentalInfluenza A Virus, H3N2 SubtypeBase SequenceAvian leukosis virusVaccines, SyntheticSmallpox VaccineTranscription, GeneticFowlpox virusVesicular stomatitis Indiana virusOrthomyxoviridae InfectionsMice, Inbred BALB CAvian Sarcoma VirusesRespiratory Syncytial Virus InfectionsViral Structural ProteinsRecombination, GeneticSimian immunodeficiency virusCells, CulturedHemagglutinin Glycoproteins, Influenza VirusVirus ActivationOrthopoxvirusRecombinant ProteinsViral Envelope ProteinsOrthomyxoviridaeCricetinaeTransfectionMice, Inbred C57BLMonkeypox virusCell Line, TumorOncolytic VirusesVirus LatencyRNA, MessengerCytopathogenic Effect, ViralPolymerase Chain ReactionViral Core ProteinsParainfluenza Virus 1, HumanMyxoma virusViral VaccinesEpstein-Barr Virus InfectionsVirus AttachmentTime FactorsHaplorhiniPlasmidsMumps virusSemliki forest virusCD8-Positive T-LymphocytesInfluenza, HumanSimplexvirusHemagglutinins, ViralOpen Reading FramesYaba monkey tumor virusTumor Necrosis Factor-alpha