Antibodies, ViralHIV AntibodiesAntibodiesAntibody SpecificityAntibodies, MonoclonalComplement Fixation TestsAntibodies, BacterialAntigensHIV SeropositivityHIV InfectionsAntigens, ViralAIDS SerodiagnosisMeasles virusAntibodies, NeutralizingMumps virusAntibody FormationRubella virusVirusesVirus DiseasesImmunoglobulin GHemagglutination Inhibition TestsHIV SeroprevalenceVoluntary ProgramsAnonymous TestingAntigens, BacterialFluorescent Antibody TechniqueAntibody AffinityHomosexualityAntigens, SurfaceAntigens, NeoplasmEpitopesAntibodies, Anti-IdiotypicBinding Sites, AntibodyContraceptive Devices, MaleAcquired Immunodeficiency SyndromeCross ReactionsAntibodies, ProtozoanSimplexvirusHIV AntigensAntibodies, AntinuclearAntibodies, NeoplasmHIV-1Enzyme-Linked Immunosorbent AssayImmunoglobulin MMolecular Sequence DataAntigen-Antibody ReactionsAutoantibodiesMice, Inbred BALB CSexual BehaviorAntigens, ProtozoanAntibodies, FungalImmunoenzyme TechniquesAmino Acid SequenceNeutralization TestsHIVImmunoassayAntigen-Antibody ComplexAntigens, CDAIDS-Related ComplexHIV-2Antibodies, BispecificImmune SeraSensitivity and SpecificitySubstance Abuse, IntravenousSingle-Chain AntibodiesHLA AntigensImmunizationReagent Kits, DiagnosticCell LineRabbitsImmunoglobulin Fab FragmentsAntigens, FungalAntibodies, BlockingBlotting, WesternT-LymphocytesAntigens, HelminthImmunoglobulin AHybridomasAntibodies, HeterophileAntigens, Polyomavirus TransformingBlood DonorsAntibodies, CatalyticFluorescent Antibody Technique, IndirectEpitope MappingCarcinoembryonic AntigenRecombinant ProteinsB-LymphocytesGenes, Immunoglobulin Heavy ChainTime FactorsCells, CulturedMolecular WeightPregnancy Complications, InfectiousH-2 AntigensAntibodies, Monoclonal, HumanizedContact TracingMass ScreeningCounselingImmunohistochemistryRisk FactorsImmunization, Passive