title: Complications of influenza.
mesh_terms: D002493:Central Nervous System Diseases / Q000821:virology; D003440:Croup / Q000821:virology; D018450:Disease Progression; D006331:Heart Diseases / Q000821:virology; D006801:Humans; D016867:Immunocompromised Host; D007251:Influenza, Human / Q000150:complications* / Q000276:immunology; D009220:Myositis / Q000821:virology; D018410:Pneumonia, Bacterial / Q000821:virology; D011024:Pneumonia, Viral / Q000821:virology; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications; D012202:Reye Syndrome / Q000821:virology; D012772:Shock, Septic / Q000821:virology