肺吸虫病是一种人、畜和某些野生动物的自然疫沅性疾病。在我地流行区内,据宽甸县夹皮沟公社1971年的调查,皮试阳性率为61％,发病率占皮试阳性率的20.1％。肺吸虫病亚临床型系指本病抗原皮内试验阳性,但无临床症状和体征,痰、粪检查均未找到虫卵的感染人群,有些病例以后出现血痰,痰中查到虫卵或发展成为脑型者。亚临床型病人早期治 Paragonimiasis is a naturally occurring infectious disease of humans, livestock and certain wild animals. In my endemic area, according to a survey conducted by the Jiapi Gougou Commune in Kuandian County in 1971, the positive rate of skin test was 61%, and the incidence rate was 20.1% of the skin test positive rate. Sub-clinical type of paragonimiasis refers to the disease antigen intradermal test positive, but no clinical symptoms and signs, sputum, fecal examination were not found in the infected population of eggs, blood sputum occurred in some cases later, sputum found eggs or development Into brains. Subclinical early treatment of patients