title: Meningitis due to Neisseria meningitidis, group Y.
mesh_terms: D006801:Humans; D008297:Male; D008585:Meningitis, Meningococcal / Q000382:microbiology*; D008875:Middle Aged; D009345:Neisseria meningitidis / Q000302:isolation & purification*; D012703:Serotyping