１９９１～１９９３年对和县陈桥洲村进行了藐小棘隙吸虫中间宿主感染情况调查。首次报告了铜锈环棱螺是藐小棘隙吸虫第一中间宿主，其自然感染率呈明显的季节性变化，７月下旬至１２月上旬可检到阳性螺，以９～１１月感染率最高。检查第二中间宿主淡水鱼２０种，１８７６尾，其中１８种检出本虫囊蚴，平均感染率为８３．７０％，淡水鱼各月感染率间无显著差异，但感染率以１１月至翌年４月最高。 From 1991 to 1993, a survey was conducted on the infection of the intermediate hosts in the spines of Trichinella spiralis in Chenqiaozhou Village, Hehe County. For the first time, it was reported that the copper rust ring snail was the first intermediate host of the small spines, and the natural infection rate showed a seasonal change. In late July to early December, positive snails could be detected, with the highest infection rate from September to November . The second intermediate host freshwater fish 20 species, 1876, of which 18 kinds of detection of the worm metacercaria, the average infection rate was 83.70%, no significant difference in monthly infection rates of freshwater fish, but the infection rate in November to Highest in April the following year.