近五年我省先后在四十二个县(市区)进行了流行病学调查,建立防治站网,开展了社会防治。贵州位于我国的西南高原,总面积十七万多平方公里,二千八百五十五万多人口,是多民族的省;地势西部高、中部 In the past five years, the province has carried out epidemiological investigations in 42 counties (urban areas) successively, established a network of prevention and control stations and carried out social prevention and control. Guizhou is located in the southwestern plateau of our country, with a total area of ​​more than 170,000 square kilometers and a population of 28.55 million. It is a multi-ethnic province;