title: Primary meningococcal pneumonia diagnosed by pleural fluid culture.
mesh_terms: D002675:Child, Preschool; D006801:Humans; D008297:Male; D008589:Meningococcal Infections / Q000175:diagnosis*; D010996:Pleural Effusion / Q000382:microbiology*; D011014:Pneumonia / Q000175:diagnosis*