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为探讨疫源地处理对控制和预防流行性出血热发病的效果,我们以1988、1989年新发病村庄为观察点,采取“一人发病,全村灭鼠,病家四邻灭螨”的疫源地处理方法,对19处疫源地进行了观察。灭鼠范围:村内及村周150米;灭螨范围:以病家为中心半径100～150米。灭鼠用0.5‰的敌鼠钠盐毒铒,灭螨用1%的敌敌畏溶液。鼠类密度及种类调查:采用夜夹法,以生花生米为诱饵,随机抽样进行调查,每处布夹200只,分别统计灭鼠前后的鼠密度及种类。发病状况及效果对比:以村为单位对疫源地进行流行病学侦察及个案调查,并对其进行半年追踪观察,计算续发病例、续发率,发病率与未进行系统疫源地处理的1986、1987两年进行对比,同时对疫区、疫点情况进行比较(作者在修回稿时说明,因病例少,没有做平行对照设计-编者)。
In order to explore the effect of the treatment of the epidemic on the control and prevention of the epidemic hemorrhagic fever, we take the newly diagnosed villages in 1988 and 1989 as the observation points and take the epidemic of "one person’s disease, Treatment method, the 19 epidemic areas were observed. Rodent elimination range: 150 meters in the village and village weeks; off mites Range: to the sick as the center radius of 100 to 150 meters. Rodent with 0.5 ‰ of the enemy mouse poison sodium erbium, mites with 1% dichlorvos solution. Rat density and species survey: night clip method, peanut as raw bait, random sampling survey, each cloth clip 200, respectively, before and after rodent rat density and species statistics. Epidemic situation and effect comparison: Epidemiological investigation and case investigation were carried out on the basis of village as a unit, followed by six months of follow-up observation to calculate the cases of recurrence, the incidence of recurrence, the incidence rate and the absence of systematic foci 1986 and 1987 compared the two, at the same time, the epidemic area, the epidemic situation comparison (the author in the revised version of the manuscript shows that because of the small number of cases, did not do parallel control design - editor).