Lymphocyte SubsetsLymphocytesLymphocyte ActivationLymphocyte CountT-Lymphocyte SubsetsCD4-CD8 RatioT-LymphocytesFlow CytometryLeukocyte CountB-LymphocytesCD4-Positive T-LymphocytesImmunophenotypingKiller Cells, NaturalB-Lymphocyte SubsetsCD8-Positive T-LymphocytesSpleenAntigens, CD3T-Lymphocytes, Helper-InducerAntigens, CDAntigens, CD45Antibodies, MonoclonalPhytohemagglutininsInterleukin-2Immunity, CellularAntigens, Differentiation, T-LymphocyteAntigens, CD8T-Lymphocytes, RegulatoryLymph NodesCells, CulturedT-Lymphocytes, CytotoxicCytotoxicity, ImmunologicLymphocytes, Tumor-InfiltratingLymphopeniaAntigens, CD4Antigens, SurfaceMice, Inbred C57BLConcanavalin ALymphocyte Culture Test, MixedThymus GlandMice, Inbred BALB CCell SeparationInterferon-gammaRosette FormationReceptors, Antigen, T-Cell, gamma-deltaCytokinesMitogensCD4 Lymphocyte CountLymphocyte DepletionLymphocytes, NullHLA-DR AntigensLymphoid TissueAntigens, CD19Antigens, CD57ImmunoglobulinsAntigens, CD56Receptors, Antigen, B-CellLymphocyte TransfusionImmunologic MemoryLeukocytes, MononuclearAntigens, DifferentiationPokeweed MitogensPhenotypeTime FactorsReceptors, Interleukin-2LeukocytesReceptors, Antigen, T-Cell, alpha-betaMonocytesImmunoglobulin GImmunoglobulin MPalatine TonsilHistocompatibility AntigensFluorescent Antibody TechniqueReceptors, Antigen, T-CellInterleukin-4Reference ValuesFeline Acquired Immunodeficiency SyndromeAppendixLymphocytosisClone CellsLymphCell LineImmunocompetenceMolecular Sequence DataImmune ToleranceCell DifferentiationMembrane GlycoproteinsL-SelectinHIV InfectionsLymphocyte CooperationCell CountImmunoenzyme TechniquesReceptors, Lymphocyte HomingAntigens, CD2Antibody FormationDendritic CellsBlood CellsBronchoalveolar Lavage FluidMice, Inbred StrainsLymphocyte Function-Associated Antigen-1Cell Division