近几年来,我们对国内东北三省及江西、福建等省的卫氏并殖吸虫进行了染色体核型、形态学和地理流行病学等方面的研究。结果显示,我国的卫氏并殖吸虫亦存在两种类型,两型的染色体数目、生殖方式、囊蚴和虫卵的大小存在明显差异。流行病学调查资料提示:两型对人的致病性亦存在一定差异。 In recent years, we conducted the research on the karyotype, morphology and geography epidemiology of Paragonimus westermani in the three northeastern provinces of China and in Jiangxi, Fujian and other provinces. The results showed that there are two types of Paragonimus westermani in our country. The chromosome number, reproductive mode, metacercariae and egg size of two types have significant differences. Epidemiological survey data suggest that: two types of human pathogenicity there are some differences.