Meningococcal meningitis in the northern savanna of Africa.
D000293:Adolescent; D000328:Adult; D000352:Africa, Northern; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000453:epidemiology; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008585:Meningitis, Meningococcal / Q000453:epidemiology*; D009345:Neisseria meningitidis / Q000032:analysis