title: B.C.G. and T.T.
mesh_terms: D000293:Adolescent; D001500:BCG Vaccine / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D011237:Predictive Value of Tests; D014374:Tuberculin Test; D014376:Tuberculosis / Q000175:diagnosis* / Q000517:prevention & control
chemical_list: D001500:BCG Vaccine