HIV AntibodiesAntibodiesAntibody SpecificityAntibodies, ViralHIV SeropositivityAntibodies, BacterialHIV InfectionsAntibodies, MonoclonalAIDS SerodiagnosisAntibodies, NeutralizingAntibody FormationHIV SeroprevalenceVoluntary ProgramsAnonymous TestingHomosexualityAntibody AffinityFluorescent Antibody TechniqueContraceptive Devices, MaleAcquired Immunodeficiency SyndromeAntibodies, Anti-IdiotypicBinding Sites, AntibodyMicrobial ConsortiaEpitopesAntibodies, NeoplasmAntibodies, ProtozoanAntibodies, AntinuclearHIV-1HIV AntigensCross ReactionsSexual BehaviorImmunoglobulin MAutoantibodiesMolecular Sequence DataHIVAntibodies, FungalNeutralization TestsEnzyme-Linked Immunosorbent AssayAIDS-Related ComplexHIV-2Substance Abuse, IntravenousAntigen-Antibody ReactionsAntibodies, BispecificImmunoenzyme TechniquesAmino Acid SequenceSingle-Chain AntibodiesImmunoassayMice, Inbred BALB CAntibodies, BlockingImmunoglobulin GSensitivity and SpecificityReagent Kits, DiagnosticAntigen-Antibody ComplexImmunoglobulin Fab FragmentsAntibodies, HeterophileAntibodies, CatalyticRisk FactorsBlotting, WesternGenes, Immunoglobulin Heavy ChainBlood DonorsImmunoglobulin AAntibodies, Monoclonal, HumanizedRabbitsFluorescent Antibody Technique, IndirectPregnancy Complications, InfectiousContact TracingMass ScreeningHybridomasImmune SeraCounselingEpitope MappingTime FactorsPrevalenceImmunizationAntibodies, AntiphospholipidCell LineHomosexuality, MaleRisk-TakingAntigensSexually Transmitted DiseasesSexual PartnersPregnancyHealth FacilitiesAntigens, BacterialRecombinant ProteinsAnti-HIV AgentsAntigens, SurfaceImmunization, PassiveHIV SeronegativityHemophilia AFalse Positive ReactionsImmunohistochemistryPrisonersImmunoglobulin FragmentsCells, CulturedSalivaAntigens, ViralMolecular WeightUnited StatesImmunoblottingSeroepidemiologic Studies