Control of epidemic meningococcal meningitis by mass vaccination.
D000293:Adolescent; D001428:Bacterial Vaccines / Q000008:administration & dosage*; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000517:prevention & control*; D005069:Evaluation Studies as Topic; D006801:Humans; D008585:Meningitis, Meningococcal / Q000517:prevention & control*; D009345:Neisseria meningitidis / Q000276:immunology*; D009549:Nigeria; D011135:Polysaccharides, Bacterial / Q000627:therapeutic use
D001428:Bacterial Vaccines; D011135:Polysaccharides, Bacterial