１９９８年７月６～１３日大姚县龙街乡鼠街村公所的３个村（张家村、大沙地、麻粟树），８ｄ内连续发生９例不明原因猝死。死者为青壮年农民，家庭聚集。病情的发生，使当地群众产生极大的恐慌。为查找病因，尽快控制病情，作者进入现场调查及病因研究，及时控制疫情，现将调 In July 1998, from July 13 to July 13, 3 villages (Zhangjiacun, Dashadi and Muguhu) of the Rokjie Village Office of Longjie Township, Dayao County, occurred 9 consecutive unexplained sudden deaths within 8 days. The dead are young and middle-aged peasants, families gather. The occurrence of the disease, the local people have a great panic. To find the cause, as soon as possible to control the disease, the author into the field investigation and etiology, timely control of the outbreak, now adjust