obsolete respiratory syncytial virus pneumonia true DOID:14474 Pneumonia due to respiratory syncytial virus (disorder) disease_ontology A respiratory syncytial virus infectious disease that results_in inflammation located_in lung, has_material_basis_in Human respiratory syncytial virus, which is transmitted_by droplet spread of nasal secretions from an infected person while coughing or sneezing, or transmitted_by contaminated fomites. The disease is characterized by occasional multinucleated syncytial giant cells, hyperplasia of alveolar epithelial cells, epithelial necrosis of bronchioles and bronchi, papillary epithelial hyperplasia, and an inflammatory infiltrate composed of lymphocytes and macrophages in the peribronchial space and interstitium.