AntigensAntigens, BacterialAntigens, NeoplasmAntigens, SurfaceAntigens, ViralVirusesVirus DiseasesAntigens, ProtozoanAntigens, Polyomavirus TransformingHLA AntigensAntigens, FungalAntigens, CDH-2 AntigensAntigens, HelminthMolecular Sequence DataVirus Physiological PhenomenaCarcinoembryonic AntigenAntigen PresentationAntigens, Viral, TumorHistocompatibility Antigens Class IIHLA-DR AntigensRNA VirusesVirologyReceptors, Antigen, T-CellAntibodies, MonoclonalHistocompatibility AntigensEpitopesProliferating Cell Nuclear AntigenMice, Inbred BALB CHost-Pathogen InteractionsT-LymphocytesReceptors, Antigen, B-CellCell LineO AntigensProstate-Specific AntigenRespiratory Tract InfectionsAmino Acid SequenceHLA-A2 AntigenPolymerase Chain ReactionAntigens, CD15Mice, Inbred C57BLHistocompatibility Antigens Class IAntigens, CD8Enzyme-Linked Immunosorbent AssayAntigens, Tumor-Associated, CarbohydrateImmunoglobulin GDNA Virus InfectionsPlant DiseasesLymphocyte ActivationDendritic CellsNorovirusBase SequenceCross ReactionsSensitivity and SpecificityRanavirusAntigens, CD3HLA-A AntigensHepatitis B Surface AntigensImmunity, InnateBlood Group AntigensAntibodies, ViralMetapneumovirusHLA-D AntigensRNA Virus InfectionsMultiplex Polymerase Chain ReactionAntigens, CD1Antibody SpecificityAntibodies, BacterialCells, CulturedAntigens, CD45Antigens, CD4DNA VirusesReceptors, AntigenAntigen-Presenting CellsFluorescent Antibody TechniqueHepatitis B AntigensTime FactorsAntibody FormationB-LymphocytesAntigen-Antibody ReactionsImmunizationCD4-Positive T-LymphocytesImmune SeraImmunity, CellularPhylogenyGastroenteritisHLA-B AntigensDNA, ViralReverse Transcriptase Polymerase Chain ReactionRNA, ViralBacterial InfectionsAntigens, DifferentiationNasopharynxSequence Analysis, DNAMART-1 AntigenBacterial ProteinsAntigens, CD80Respiratory Syncytial Virus InfectionsSpleenPneumonia, Viral