Defective VirusesHerpesvirus 4, HumanEpstein-Barr Virus InfectionsMurine Acquired Immunodeficiency SyndromeEpstein-Barr Virus Nuclear AntigensInfectious MononucleosisViral Matrix ProteinsDNA, ViralNasopharyngeal NeoplasmsBurkitt LymphomaCell LineHerpesviridae InfectionsHodgkin DiseaseHelper VirusesVirus ReplicationSex ChromatinAntibodies, ViralB-LymphocytesPolymerase Chain ReactionRNA VirusesRNA, ViralViral InterferenceViral ProteinsGenes, ViralAntigens, ViralLeukemia Virus, MurineVaccinia virusMolecular Sequence DataReceptors, VirusVirus CultivationGenome, ViralVirus SheddingBase SequenceVirus AssemblyCell Line, TransformedVirus DiseasesPlant VirusesDNA VirusesSimian virus 40Lymphoproliferative DisordersSindbis VirusGenetic Complementation TestMeasles virusInfluenza A Virus, H1N1 SubtypeRabies virusInfluenza A Virus, H5N1 SubtypeHepatitis B virusMutationWest Nile virusInfluenza A Virus, H3N2 SubtypeVirus ActivationVero CellsRespiratory Syncytial VirusesVirus LatencyVesicular stomatitis Indiana virusGene Expression Regulation, ViralAntiviral AgentsSimian immunodeficiency virusVirionHemagglutinin Glycoproteins, Influenza VirusViral Plaque AssayPlasmidsOncogenic VirusesMosaic VirusesReplication Protein AParainfluenza Virus 1, HumanAmino Acid SequenceRecombination, GeneticMumps virusHIV-1Semliki forest virusCytopathogenic Effect, ViralCercopithecus aethiopsHeLa CellsBK VirusHepatitis A virusNeutralization TestsTumor Virus InfectionsJC VirusVirus AttachmentAvian Sarcoma VirusesPhylogenyVirus IntegrationCapsidDNA-Binding ProteinsSimplexvirusCells, CulturedHepacivirusTranscription, GeneticOrthomyxoviridaeOrthomyxoviridae InfectionsHerpesvirus 1, HumanViruses, UnclassifiedGenetic VectorsCricetinaeAvian leukosis virusMoloney murine leukemia virusBluetongue virusSendai virusHIV Infections