title: Respiratory infections: major advances.
mesh_terms: D002923:Cilia / Q000502:physiology*; D006801:Humans; D007877:Legionnaires' Disease / Q000209:etiology*; D011014:Pneumonia / Q000209:etiology*; D011020:Pneumonia, Pneumocystis / Q000517:prevention & control*; D014871:Water Microbiology