Acute viral respiratory infections in children.
D000208:Acute Disease; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012141:Respiratory Tract Infections / Q000209:etiology*; D014777:Virus Diseases / Q000209:etiology*