有非典型肺炎病人密切接触史或有明确传染他人的证据,是诊断本病的依据之一。本病起病急,以发热为首发症状,多为高热(超过38℃),偶有畏寒;伴头痛、全身酸痛、乏力。随后出现咳嗽,多为干咳、少痰,偶有血丝痰、严重者出现呼吸加速,气促,或进展为急性呼吸窘迫综合症。临床检查肺部体征不明显,部分病人可闻少许干、湿口罗音,或有肺实变体征:实验 There is evidence of close contact with patients with atypical pneumonia or a clear infection of others, is one of the bases for the diagnosis of the disease. The disease onset acute, fever as the first symptom, mostly high fever (over 38 ℃), occasional chills; with headache, body aches, fatigue. Followed by cough, mostly dry cough, sputum less, occasional bloody sputum, severe cases of respiratory acceleration, shortness of breath, or progress to acute respiratory distress syndrome. Clinical examination of lung signs is not obvious, some patients can smell a little dry, wet mouth rales, or signs of lung consolidation: experiment