1994年4月，为证实至今仍无病例的临潭县是否存在肾综合征出血热（HFRS）疫源地，进行了鼠间疫情监测。结果如下：一、地貌概况：临潭县地处甘肃南部，海拔2200～2500m，年均气温5.5℃，年均降水量645mm。气候高寒阴湿，冬春长于夏秋，无霜期短，气温差别较大，自然灾害频繁。 In April 1994, outbreak surveillance was conducted in order to confirm the presence of an HFRS epidemic in Lintan County, which is still unknown to date. The results are as follows: I. Topography: Lintan County is located in southern Gansu, elevation 2200 ~ 2500m, with an average annual temperature of 5.5 ℃, the average annual rainfall of 645mm. Cold and humid climate, winter and spring long in summer and autumn, frost-free period is short, large temperature differences, frequent natural disasters.