云南省辖16个州(市)、129个县(市、区)1572个乡(镇),总面积394000km2,山区面积占94%。全省有25个少数民族。到2003年底,全省总人口4375万人。由于该省处于低纬度、高海拔地区,地理位置特殊、环境气候复杂,多种传染病、地方病流行广泛。尤其是血吸虫病,给本省疫区广大人民群众的 There are 1572 townships (towns) in 16 prefectures (cities) and 129 counties (cities and districts) in Yunnan Province, with a total area of ​​394,000 km 2 and a mountainous area of ​​94%. The province has 25 ethnic minorities. By the end of 2003, the province’s total population of 43750000 people. As the province at low latitudes and high altitude, special geographical location, complex environment and climate, a variety of infectious diseases, endemic endemic widespread. Especially schistosomiasis, to the masses of the people in the affected area of ​​this province