title: Coronavirus in respiratory infection.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003333:Coronaviridae Infections / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D012141:Respiratory Tract Infections / Q000209:etiology*; D012698:Serologic Tests