The endemicity degree of echinococcosis differs with regions and is influenced by various factors.
棘球蚴病的流行具有地方性，但各地区的流行程度差异较大。
2
Objective to study epidemiologic features and degree of endemicity of Schistosomiasis Japonica in water net region.
目的了解水网地区日本血吸虫病流行程度及流行特征。
3
The study on the validity, reliability and control effect of the screening method of regarding water contact as chemotherapy indicator was carried out in schistosomiasis medium endemicity.