title: Meningococcal meningitis: past and present concepts.
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D008585:Meningitis, Meningococcal / Q000188:drug therapy / Q000266:history / Q000276:immunology; D008887:Military Medicine / Q000266:history; D014481:United States