Vaccination against meningococcal meningitis.
D000293:Adolescent; D000328:Adult; D001428:Bacterial Vaccines / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008297:Male; D008585:Meningitis, Meningococcal / Q000517:prevention & control*; D008887:Military Medicine; D011135:Polysaccharides, Bacterial / Q000627:therapeutic use*; D014611:Vaccination
D001428:Bacterial Vaccines; D011135:Polysaccharides, Bacterial