我县是流行性出血热高发地区,近十年来,年发病专率在100/十万左右,最高年发病专率达241/十万。既往,连年反复使用磷化锌进行野外灭鼠预防出血热。近年发现,鼠类有明显拒食现象。为了提高灭鼠效果,克服使用单一药效的缺陷,我们于1983年1月上旬在灰埠公社对五万余亩的耕地面积投用敌鼠钠盐毒杀野栖鼠,取得一定灭效。现将观察情况报告如下: My county is endemic to areas with high incidence of hemorrhagic fever in the past decade, the annual incidence rate of 100 / 100,000 or so, the highest annual incidence rate of 241 / 100,000. Past, repeated years of repeated use of zinc phosphide to prevent rodents in the wild to prevent hemorrhagic fever. In recent years found that mice have significant antifeedant phenomenon. In order to improve the anti-rodent effect and overcome the defect of using single efficacy, we used some poisonous enemy sodium poisoning to kill wild rats at the gray port commune about 50,000 mu of cultivated land in early January 1983, and achieved some success. Now observe the situation report as follows: