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增城县位于广东省中南部,东经113度,北纬23度34分,气候温和多雨,属亚热带气候。该县是1956年发现血吸虫病疫区,只有派潭公社3个大队,疫区总人口数3,284人。疫区环境相连一片,属于四面环山的盆地,面积约10平方公里。该县疫区虽小,但疫情严重,3个疫区大队历年查出有螺面积为112,345平方米,病人982名,病牛71头。原人群感染率为
Zengcheng County is located in central and southern Guangdong Province, 113 degrees east longitude, latitude 23 degrees 34 minutes, mild and rainy climate, is a subtropical climate. The county was found in 1956, schistosomiasis epidemic area, only three battalions of the pie Tan Commune, the total affected population of 3,284 people. Affected areas connected to a piece of environment, belonging to the basin surrounded by mountains, an area of about 10 square kilometers. Although the epidemic area of this county is small, the epidemic situation is serious. The three epidemic area brigade found that there are 112,345 square meters of snail area with 982 patients and 71 sick cattle over the years. The original population infection rate