The role of the lung in controlling respiratory infections.
D000542:Alveolitis, Extrinsic Allergic; D001424:Bacterial Infections / Q000276:immunology; D006801:Humans; D007111:Immunity, Cellular; D007251:Influenza, Human / Q000276:immunology; D008168:Lung / Q000276:immunology / Q000502:physiology*; D012141:Respiratory Tract Infections / Q000503:physiopathology*; D013296:Streptococcus pneumoniae / Q000276:immunology; D014777:Virus Diseases