Susceptibility to meningococcal meningitis.
D000942:Antigens, Bacterial; D001428:Bacterial Vaccines; D006801:Humans; D008585:Meningitis, Meningococcal / Q000276:immunology* / Q000517:prevention & control; D009345:Neisseria meningitidis / Q000276:immunology; D014611:Vaccination
D000942:Antigens, Bacterial; D001428:Bacterial Vaccines