1998年黑龙江省遭受特大洪涝灾害。受灾地区整个生态环境发生变化 ,生态平衡遭到破坏 ,导致鼠类及昆虫的过量滋生、繁殖和迁徙 ,潜在着鼠传疾病和其它虫媒传染病的暴发和流行。由于食物、饮用水受到环境中致病原的污染 ,灾民的生活环境恶劣 ,机体抵抗力下降 ,卫生知识贫乏 ,也 Heilongjiang Province suffered a catastrophic flood disaster in 1998. Changes in the entire ecological environment in the affected areas and the destruction of ecological balance have led to outbreaks and prevalence of rodents and insects over breeding, breeding and migration, potential rodent diseases and other zoonotic diseases. As food and drinking water are polluted by pathogenic agents in the environment, the living conditions of the victims are deteriorating, the body’s immunity is deteriorated, hygiene knowledge is poor, and