去年(1959年)的调查发现九台镇后小屯的萝卜螺中存在着血吸虫尾蚴,并认为是稻田皮炎的主要发病原因之一。今年经各种试验已对此予以确证。既已证明血吸虫尾蚴为稻田皮炎的病因,查明螺中尾蚴的来源,即终宿主的种类,对本病的发病学、防治等问题有重要的意义。 A survey last year (1959) found that schistosome cercariae were present in radish snail at Hou Xiaotun in Jiutai Town and was considered as one of the major causes of paddy field dermatitis. This year has been confirmed by various tests. It has been proved that Schistosoma japonicum cercariae is the etiological factor of paddy field dermatitis. It is of great significance to identify the source of cercariae, that is, the species of the final host, and to understand the pathogenesis, prevention and treatment of this disease.