本文阐述了急性呼吸道感染90%是由病毒及支原体引起。其中10%又可引起肺部感染。由于支原体肺炎患者多数症状轻微,因此常来去就诊。现就其流行病学、病理变化、临床征象和治疗作一概述如下: 流行病学引起呼吸道病毒感染,最常见的病毒是流感病毒、腺病毒、副流感病 This article illustrates that 90% of acute respiratory infections are caused by viruses and mycoplasmas. 10% of them can cause lung infection again. As mycoplasma pneumonia patients with mild symptoms, so often come and visit. An overview of their epidemiology, pathological changes, clinical signs and treatment is summarized as follows: Epidemiology Respiratory virus infection, the most common viruses are influenza, adenovirus, parainfluenza