title: Giant-cell pneumonia caused by parainfluenza virus.
mesh_terms: D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D007223:Infant; D008297:Male; D010224:Parainfluenza Virus 3, Human; D018184:Paramyxoviridae Infections / Q000209:etiology* / Q000473:pathology; D011024:Pneumonia, Viral / Q000209:etiology* / Q000473:pathology