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本文报告了蒙城县非稳定性单纯间日疟流行区，从６０年代初到７０年代初曾发生过两次大面积暴发流行，７０年代中和８０年代初又发生三次较大流行。通过２４年来的积极防治，在采取“两根治、一预防、消灭传染源”为主的综合性防治和现症病人管理三个阶段不同对策后，使流行范围逐年缩小，疟疾发病大幅度下降，全县疟疾发病率从１９７０年的１６８３．８８／万，降至１９９７年的０．００９／万，并实现了连续１２年在１／万以下，１９９８年全县无疟疾疫情，达到了部颁基本消灭疟疾标准。
This paper reports the epidemic area of instability Plasmodium vivax in Mengcheng County. Two large-scale outbreaks occurred from the early 1960s to the early 1970s, and three major epidemics occurred in the mid-1970s and the early 1980s. After 24 years of active prevention and control, adopting different measures in three phases of comprehensive prevention and control and current management of patients mainly based on “two treaties, one prevention and elimination of contagious sources” reduced the epidemic scope year by year and the incidence of malaria dropped drastically. The incidence of malaria in the county dropped from 1683.88 / million in 1970 to 0.009 / million in 1997 and reached below 1 / 10,000 in 12 consecutive years. In 1998, the county had no malaria epidemic and reached the ministerial level Basically eliminate the malaria standard.