自 2 0 0 2年 1 1月开始 ,首先在广东省局部地区出现了一种急性传染病 ,临床表现为发热、干咳、少痰 ,Ｘ线表现以肺部渗出性炎症病变为主 ,部分患者快速进展为急性呼吸衰竭。其流行病学特点是病原不明 ,可能以呼吸道飞沫传播为主 ,早期医护人员感染率高 ,亦可呈家庭聚集现象。 Beginning in January 2001, an acute infectious disease was first reported in some areas of Guangdong Province. The clinical manifestations were fever, dry cough, and phlegm. X-ray showed predominant pulmonary exudative inflammatory lesions and some The patient progressed rapidly to acute respiratory failure. Its epidemiological features are unknown pathogens, respiratory droplets may be the main transmission, the early infection rate of medical staff is high, but also showed the phenomenon of family aggregation.