Serial PassageCell LineVirus CultivationCells, CulturedDefective VirusesVirus ReplicationCell Culture TechniquesViral InterferenceMolecular Sequence DataDigestionReticulumVirulenceViral Plaque AssayGastrointestinal TransitMutationTime FactorsBase SequenceFibroblastsKaryotypingCattleRumenCytopathogenic Effect, ViralDigestive System Physiological PhenomenaCell DivisionCricetinaeRNA, ViralPhenotypeCulture MediaNeoplasm TransplantationGenome, ViralAnimal FeedCell AgingCulture TechniquesCell DifferentiationClone CellsDNA, ViralMicroscopy, ElectronCell Transformation, NeoplasticYtterbiumAmino Acid SequencePoaceaeCercopithecus aethiopsEpithelial CellsCell Transformation, ViralViral ProteinsKineticsGenes, ViralHaplorhiniMedicago sativaAntigens, ViralNasal CavityDogsSwineGenetic VariationTransplantation, HeterologousSheepSpecies SpecificityModels, BiologicalRabbitsGastrointestinal MotilityMice, NudeVero CellsMaternal-Fetal ExchangeCell Line, TransformedMesenchymal Stromal CellsBiological TransportAdaptation, BiologicalNeoplasms, ExperimentalChick EmbryoRNA, MessengerCell ProliferationFluorescent Antibody TechniqueTemperatureSimian virus 40EpitheliumHelper VirusesPermeabilityReverse Transcriptase Polymerase Chain ReactionSindbis VirusDietary FiberKidneyMesocricetusMice, Inbred BALB CDNAPolymerase Chain ReactionVaccines, AttenuatedSequence Analysis, DNATransfectionRecombination, GeneticAdaptation, PhysiologicalTumor Cells, CulturedChickensFoot-and-Mouth Disease VirusFecesViral VaccinesTelomeraseCell MembraneCell Membrane PermeabilityPlasmidsEmbryo, Mammalian