黑龙江省宝清县小城村是作者1987年在乌苏里江水系新发现的并殖吸虫病流行区,在该区流行病调查中发现人群多为隐性感染,缺乏特异症状,痰检、粪检均未查到虫卵,为了调查人群感染情况,我们应用了并殖吸虫后尾蚴膜反应。首先以成虫抗原(1/2000)做皮内试验筛选,277例受检者中,77人皮试阳性,取其中34人血清进行了后尾蚴膜试验。从当地采集的锐刺 Small town in Baoqing County, Heilongjiang Province is the author of a newly discovered Paragonimiasis endemic area in the Ussuri River in 1987. In the epidemiological survey of the area, most of the patients were found to be latent infection, lack of specific symptoms, sputum examination and stool examination Did not find the eggs, in order to investigate the population infection, we applied the paragonimus cercariae membrane reaction. First of all, adult worm antigen (1/2000) was used for intradermal screening. Among 277 subjects, 77 were skin tested positive and 34 of them were seronegative. Sharp spines collected from the locality