Tuberculin TestTuberculinTuberculosis, CutaneousHypersensitivity, DelayedBCG VaccineTuberculosisSkinLatent TuberculosisTuberculosis, PulmonaryInterferon-gamma Release TestsTuberculosis, BovineMycobacterium tuberculosisMycobacterium bovisSkin TestsInterferon-gammaImmunologic TestsContact TracingAntigens, BacterialMass Chest X-RayIsoniazidSensitivity and SpecificityAntitubercular Agents