流行性出血热的流行季节,约在10月中旬至第二年元月下旬,大批的流行时期,在11月中旬～12月中旬。按文献记载,是一种自然疫源性疾病,凡罹患这种病的,大都直接在野地里工作,或其住所鄰接草原,而居住的周围环境,齿类动物亦多,接触疫源灶机会多,传染的可能性也就大。例如××农场,二作业区、仅在一个打谷场内,就消灭了1,500多只野鼠,该作业区发病人数就多。经过我们观察,此病的感染与野鼠有很大关系。 Epidemic hemorrhagic fever epidemic season, about mid-October to the second year in late January, a large number of popular period, in mid-November to mid-December. According to the literature, it is a naturally foci disease. All those who suffer from this disease work directly in the fields or their dwellings are adjacent to the grasslands. However, the living environment, the number of animal species and the chances of exposure to the foci More, the possibility of infection is large. For example, in the ×× farm and the second operating area, more than 1,500 voles were destroyed in only one threshing floor. After our observation, the infection of the disease has a great relationship with the wild rats.