Acute respiratory diseases.
D000208:Acute Disease; D000328:Adult; D001990:Bronchiolitis, Viral; D001991:Bronchitis; D002648:Child; D003139:Common Cold; D006801:Humans; D007251:Influenza, Human; D010033:Otitis Media; D010612:Pharyngitis; D011014:Pneumonia; D012137:Respiratory System / Q000382:microbiology; D012140:Respiratory Tract Diseases / Q000175:diagnosis; D012141:Respiratory Tract Infections / Q000276:immunology