title: Meningococcal pneumonia; report of two cases with meningococcal effusion in one.
mesh_terms: D006801:Humans; D008589:Meningococcal Infections; D022401:Meningococcal Vaccines; D011014:Pneumonia / Q000209:etiology*
chemical_list: D022401:Meningococcal Vaccines
keywords: PNEUMONIA/etiology and pathogenesis