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河南省南阳地区1980—1984年间,流行性出血热发病逐年上升,疲区迅速蔓延,而在1985年以来,发病又逐年下降,且有东移之势。根据几年来南阳地区的发病情况,鼠类调查结果和广大面积灭鼠运动的开展,分析认为:河南省南阳地区流行性出血热发病下降的因素为:1、灭鼠工作的开展。2、优势鼠种的改变3、鼠体带毒率的下降4、带毒鼠种的改变。
Between 1980 and 1984 in Nanyang area of Henan province, the incidence of epidemic hemorrhagic fever increased year by year with the rapid spread of the fatigue area. Since 1985, the incidence has dropped year by year, and there is a trend of eastward shift. According to the incidence of Nanyang area in recent years, the results of rodents and the development of rodent control campaigns in large areas, the analysis shows that the factors that reduce the incidence of epidemic hemorrhagic fever in Nanyang area of Henan Province are as follows: 1. 2, the dominant species of rat changes 3, the rat with a decline in the rate of poisoning 4, with the change in rats with poison.