| DOID/SYMP | 
                                                                        
                                                                        
                                                                        Pneumonia (DOID:552
                                                                                )A lung disease that involves lung parenchyma or alveolar inflammation and abnormal alveolar filling with fluid (consolidation and exudation). It results from a variety of causes including infection with bacteria, viruses, fungi or parasites, and chemical or physical injury to the lungs. It is accompanied by fever, chills, cough, and difficulty in breathing.
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