1名原来健康的40岁男子,因突然寒战、发热、咳嗽及气急而住院。该男子在一家鱼类加工厂担任舀船舱水的工作。病前无任何胃肠道症状。入院时病人呼吸窘迫。血压80/50mmHg,体温38℃,脉搏130次,呼吸35次。无皮疹或淋巴结肿,但两肺有湿罗音。除心动过速外,心脏正常。腹部也正常。化验:红细胞压积 A 40-year-old man, originally healthy, was hospitalized for sudden chills, fever, cough and shortness of breath. The man worked in a fish processing plant to dug his cabin water. Before the illness without any gastrointestinal symptoms. Patient respiratory distress on admission. Blood pressure 80 / 50mmHg, body temperature 38 ℃, pulse 130 times, breathing 35 times. No rash or swollen lymph nodes, but both lungs have wet rales. In addition to tachycardia, the heart is normal. Abdomen is normal. Assay: Hematocrit