AIDS SerodiagnosisSerologic TestsAntibodiesAntibodies, ViralAntibodies, BacterialAntibody SpecificityEnzyme-Linked Immunosorbent AssayAntibodies, MonoclonalAntibodies, ProtozoanImmunoglobulin MSensitivity and SpecificityAntibody FormationImmunoglobulin GHIV SeropositivityAntibodies, NeutralizingAntigens, BacterialFluorescent Antibody TechniqueHIV AntibodiesCross ReactionsAntigens, ProtozoanAntibody AffinitySyphilis SerodiagnosisAntigens, HelminthAntibodies, HelminthAntibodies, FungalEpitopesComplement Fixation TestsAgglutination TestsRecombinant ProteinsSeroepidemiologic StudiesHemagglutination Inhibition TestsNeutralization TestsHepatitis B e AntigensAntibodies, Anti-IdiotypicEvaluation Studies as TopicBinding Sites, AntibodyHemagglutination TestsAcquired Immunodeficiency SyndromeImmunoblottingMolecular Sequence DataToxoplasmosisImmunoenzyme TechniquesHepatitis B AntibodiesHIV InfectionsImmunoglobulin ALyme DiseaseFluorescent Antibody Technique, IndirectBorrelia burgdorferi GroupAntibodies, NeoplasmReagent Kits, DiagnosticAmino Acid SequenceImmunoassayHIV-1Antibodies, AntinuclearDog DiseasesAntigens, ViralLeishmania infantumTime FactorsLeishmaniasis, VisceralHepatitis B, ChronicAutoantibodiesBlotting, WesternAntigen-Antibody ReactionsDourineGlandersCattle DiseasesLeptospirosisVaccinationRabbitsAntigens, FungalEhrlichiosisFascioliasisParasitologyGnathostomiasisHomosexualityClonorchis sinensisConvalescenceToxoplasmaViral LoadHepatitis BHepatitis B virusHepatitis C AntibodiesHorse DiseasesMice, Inbred BALB CProtozoan ProteinsAntibodies, BispecificEchinococcosis, PulmonaryEpitope MappingAntigens, SurfaceHepatitis B VaccinesImmune SeraSingle-Chain AntibodiesImmunodiffusionAntibodies, BlockingSwine DiseasesClonorchiasisCattleImmunizationInfluenza VaccinesHepatitis C