Immunoprophylaxis of meningococcal infection.
D001428:Bacterial Vaccines; D004196:Disease Outbreaks; D006801:Humans; D008297:Male; D008589:Meningococcal Infections / Q000453:epidemiology / Q000517:prevention & control*; D008887:Military Medicine; D014481:United States; D014611:Vaccination
D001428:Bacterial Vaccines