1、流行病学史 :①发病前 2周曾密切接触过同类病人或者有明确的传染给他人的证据 ;②生活在流行区或发病前 2周到过非典型肺炎正在流行的地区。2、症状与体征 :有发热 (38℃ )和下列一项或一项以上 :咳嗽、呼吸加速、气促、呼吸窘迫综合征、肺部罗音、肺实变体征。3、实验室 1, the history of epidemiology: ① 2 weeks before the onset of close contact with similar patients or have clear evidence of infection to others; ② living in the epidemic area or the onset of at least 2 weeks have been to atypical pneumonia is endemic areas. 2, symptoms and signs: fever (38 ℃) and one or more of the following: cough, breath acceleration, shortness of breath, respiratory distress syndrome, lung rales, lung consolidation signs. 3, laboratory