Skin TestsTuberculin TestSkinIntradermal TestsHypersensitivity, ImmediateAllergensImmunoglobulin EFood HypersensitivityLatent TuberculosisHypersensitivityRadioallergosorbent TestSkin AgingSkin DiseasesHypersensitivity, DelayedSkin NeoplasmsTuberculosisUrticariaDrug HypersensitivityMitesInterferon-gamma Release TestsRhinitis, Allergic, PerennialAnaphylaxisPatch TestsTuberculinLatex HypersensitivityRhinitisBCG VaccineRhinitis, Allergic, SeasonalStreptodornase and StreptokinaseAsthmaRespiratory HypersensitivityPollenSkin Physiological PhenomenaMycobacterium tuberculosisTuberculosis, PulmonaryImmunologic TestsNasal Provocation TestsDesensitization, ImmunologicSkin AbsorptionHistoplasminPyroglyphidaeHeelMilk HypersensitivitySkin PigmentationAntigens, PlantSensitivity and SpecificityTuberculosis, BovineBronchial Provocation TestsBasophil Degranulation TestAntigens, DermatophagoidesDustAntigens, BacterialCockroachesErythemaEczemaBlood Specimen CollectionContact TracingAntigens, FungalOccupational DiseasesDermatophagoides pteronyssinusInterferon-gammaSkin, ArtificialMycobacterium bovisDermatitis, OccupationalPrevalenceDermatitis, AtopicImmunity, CellularOccupational ExposureEnzyme-Linked Immunosorbent AssayRespiratory SoundsEgg HypersensitivityBasophilsTrichophytinGuinea PigsCoccidioidinSkin Test End-Point TitrationAnti-Allergic AgentsLeishmaniasis, CutaneousCupressusBetulaBronchial HyperreactivityLeishmania braziliensisMethacholine ChloridePetasitesArachis hypogaeaReagent Kits, DiagnosticTransfer FactorSkin Diseases, BacterialSkin UlcerIsoniazidParietariaAgricultural Workers' DiseasesMass Chest X-RayAntitubercular AgentsRisk FactorsTrichophytonPeanut HypersensitivityEpidermisCross-Sectional StudiesNasal Polyps