Skin TestsTuberculin TestLatent TuberculosisSkinInterferon-gamma Release TestsTuberculosisIntradermal TestsMycobacterium tuberculosisImmunologic TestsBCG VaccineSkin AgingSkin DiseasesContact TracingSkin NeoplasmsTuberculosis, PulmonaryTuberculinHypersensitivity, DelayedHypersensitivity, ImmediateAntitubercular AgentsInterferon-gammaIsoniazidAntigens, BacterialStreptodornase and StreptokinaseDrug HypersensitivityImmunoglobulin ESensitivity and SpecificitySkin Physiological PhenomenaReagent Kits, DiagnosticSkin AbsorptionRadioallergosorbent TestHistoplasminHypersensitivityAllergensUrticariaMass ScreeningSkin PigmentationTuberculosis, BovineHealth PersonnelBasophil Degranulation TestAnaphylaxisErythemaPrevalenceRifampinEnzyme-Linked Immunosorbent AssaySkin, ArtificialMycobacterium bovisMitesImmunity, CellularFood HypersensitivityEmigration and ImmigrationAntigens, FungalTrichophytinGuinea PigsT-LymphocytesCoccidioidinSkin Test End-Point TitrationRisk FactorsLeishmaniasis, CutaneousProspective StudiesAntibiotics, AntitubercularLeishmania braziliensisCross-Sectional StudiesRespiratory HypersensitivityPetasitesTransfer FactorRadiography, ThoracicSkin Diseases, BacterialSkin UlcerPyrazinamideRheumatic DiseasesSwitzerlandPredictive Value of TestsMass Chest X-RayDesensitization, ImmunologicAsthmaTrichophytonEpidermisTime FactorsIncidenceBacterial ProteinsLeishmaniasis, MucocutaneousDinitrochlorobenzeneImmunoassayRhinitisCell Migration InhibitionAntigensAsymptomatic InfectionsCoccidioidomycosisInfectious Disease Transmission, Patient-to-ProfessionalPatch TestsLeprominGambiaHIV InfectionsRetrospective StudiesRhinitis, Allergic, SeasonalAspergillosis, Allergic BronchopulmonaryRhinitis, Allergic, PerennialCarrier StateLatex HypersensitivityBasophils