Defences against meningococcal infections.
D000293:Adolescent; D000942:Antigens, Bacterial / Q000276:immunology; D001428:Bacterial Vaccines / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008585:Meningitis, Meningococcal / Q000453:epidemiology / Q000276:immunology* / Q000517:prevention & control; D022401:Meningococcal Vaccines; D009345:Neisseria meningitidis / Q000145:classification / Q000276:immunology; D012703:Serotyping
D000942:Antigens, Bacterial; D001428:Bacterial Vaccines; D022401:Meningococcal Vaccines