title: Leprosy vaccine--a puzzle.
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D001135:Armadillos; D001500:BCG Vaccine / Q000276:immunology; D001428:Bacterial Vaccines / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D004195:Disease Models, Animal; D006168:Guinea Pigs; D006801:Humans; D007111:Immunity, Cellular; D007916:Lepromin / Q000276:immunology; D007918:Leprosy / Q000276:immunology; D051379:Mice; D009166:Mycobacterium leprae / Q000276:immunology*
chemical_list: D001500:BCG Vaccine; D001428:Bacterial Vaccines; D007916:Lepromin