我区地处珠江三角州,以平原、水网区为主,西南面有少量山区,农业以水稻和淡水鱼养殖为主,尤以顺德、南海、中山等县的水网地区淡水鱼养殖业最为发达,桑塘面积占总耕地面积50％以上。华支睾吸虫病流行极其广泛和严重,解放前已有病例报告,解放后,特别是70年代以来,全区12个县市先后进行了流行病学调查,至目前止已查三十多万人,治疗病 My district is located in the Pearl River Delta, the plains, the main water network, a small amount of mountainous southwest, agriculture, rice and freshwater fish farming-based, especially in Shunde, Nanhai, Zhongshan County, the water network of freshwater fish farming most Developed, Sang pond area accounts for more than 50% of the total arable land. Clonorchis sinensis is extremely widespread and serious, and has been reported before the liberation. After the liberation, especially since the 1970s, 12 counties and cities in the region have successively conducted epidemiological investigations, so far, more than 300,000 have been investigated People, treatment of disease