Acute lower respiratory disease.
D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000553:Ambulatory Care; D001990:Bronchiolitis, Viral / Q000175:diagnosis; D001991:Bronchitis / Q000175:diagnosis; D002648:Child; D002908:Chronic Disease; D003937:Diagnosis, Differential; D004825:Epiglottis; D006801:Humans; D007827:Laryngitis / Q000175:diagnosis; D011014:Pneumonia / Q000175:diagnosis; D011018:Pneumonia, Pneumococcal / Q000175:diagnosis; D011024:Pneumonia, Viral / Q000175:diagnosis; D012141:Respiratory Tract Infections / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy*; D014136:Tracheitis / Q000175:diagnosis; D014481:United States