LymphocytosisLymphocytesLymphocyte ActivationEnzootic Bovine LeukosisLymphocyte CountLeukemia Virus, BovineB-LymphocytesLymphocyte SubsetsT-LymphocytesLeukemia, Lymphocytic, Chronic, B-CellImmunophenotypingLeukocyte CountLeukocytosisLymphoproliferative DisordersFlow CytometryInfectious MononucleosisTrypanosomiasis, BovineKiller Cells, NaturalSplenomegalyClone CellsSpleenInterleukin-2Antigens, CD5PreleukemiaLeukemia, LymphoidCD4-CD8 RatioReceptors, Antigen, B-CellAntigens, CDAgranulocytosisCD4-Positive T-LymphocytesHepatomegalyCattle DiseasesLymphocyte Culture Test, MixedCytotoxicity, ImmunologicLeukemia, Large Granular LymphocyticCD8-Positive T-LymphocytesMitogensAntigens, CD3Immunoglobulin Heavy ChainsLeukemia, T-CellT-Lymphocyte SubsetsParotid DiseasesBordetella pertussisCells, CulturedGene Rearrangement, B-LymphocyteAlveolitis, Extrinsic AllergicLymph NodesAntigens, SurfaceLymphocytes, Tumor-InfiltratingBone Marrow ExaminationAntibodies, MonoclonalPhytohemagglutininsRed-Cell Aplasia, PureBone MarrowBronchoalveolar Lavage FluidImmunity, CellularSplenectomyReceptors, Antigen, T-CellT-Lymphocytes, CytotoxicCattle