Leukemia Virus, MurineLeukemia Virus, FelineMoloney murine leukemia virusLeukemia Virus, BovineLeukemiaLeukemia, ExperimentalFriend murine leukemia virusImmunodeficiency Virus, FelineAKR murine leukemia virusCatsLeukemia, Myeloid, AcuteCat DiseasesFeline Acquired Immunodeficiency SyndromeHuman T-lymphotropic virus 1Calicivirus, FelineCoronavirus, FelineReceptors, VirusVirus ReplicationLeukemia Virus, Gibbon ApeAbelson murine leukemia virusLeukemia, Lymphocytic, Chronic, B-CellCell LineRetroviridaeRetroviridae InfectionsSarcoma Viruses, FelineLeukemia, FelineRNA VirusesRauscher VirusGene Products, taxLeukemia, LymphoidGenes, ViralMolecular Sequence DataDNA, ViralFeline PanleukopeniaDefective VirusesVirus CultivationVaccinia virusRNA, ViralEnzootic Bovine LeukosisProvirusesViral ProteinsFeline Infectious PeritonitisLeukemia, Myelogenous, Chronic, BCR-ABL PositiveFeline panleukopenia virusTumor Virus InfectionsVirus AssemblyBase SequenceLeukemia, T-CellRNA-Directed DNA PolymeraseGene Products, gagAntigens, ViralCell Transformation, ViralOncogenic VirusesGammaretrovirusAmino Acid SequenceVirus IntegrationRetroviridae Proteins, OncogenicSimian virus 40Virus SheddingMice, Inbred AKRVirus DiseasesLeukemia-Lymphoma, Adult T-CellHuman T-lymphotropic virus 2VirionDeltaretrovirusGene Products, envRepetitive Sequences, Nucleic AcidPrecursor Cell Lymphoblastic Leukemia-LymphomaGene Expression Regulation, ViralRadiation Leukemia VirusHylobatesPlant VirusesViral Envelope ProteinsDNA VirusesSindbis VirusGenetic VectorsAvian leukosis virusGenes, envTerminal Repeat SequencesMeasles virusLentivirus InfectionsMinkHTLV-I InfectionsInfluenza A Virus, H1N1 SubtypePolymerase Chain ReactionMink Cell Focus-Inducing VirusesGene Products, rexSarcoma Viruses, MurineLeukemia, Monocytic, AcuteLymphomaLeukemia, Hairy CellRetroviridae ProteinsRecombination, GeneticRabies virusGenes, pXLeukemia, Radiation-InducedInfluenza A Virus, H5N1 SubtypePreleukemiaTransfectionAntibodies, Viral