Abstract: As a global zoonotic disease, fascioliasis is a serious threat to human and animal health and animal husbandry development. The complexity of the classification and identification of Lymnaeidae, the intermediate host of Fasciola, notably the emergence of its sibling species, leads to misunderstanding of geographical distribution and transmission potential of Fasciola. This review introduces the classification of flukes of the family Fasciolidae, describes the geographical distribution of F. hepatica and F. gigantic, and discusses the co⁃evolution of Fasciola and Lymnaeidae host snails, and the effects of human activities and ruminant migration on global spread and transmission of Fasciola. In addition, we revisit the intermediate host snails of Fasciola in Africa based on the latest molecular biological evidence.

Key words: Fasciola, Fascioliasis, Lymnaeidae, Intermediate host, Geographical distribution

摘要： 片形吸虫病是一种广泛分布于全球的人兽共患病，严重威胁人畜健康与畜牧业发展。由于片形吸虫中间宿主椎实螺分类鉴定的复杂性，特别是某些姐妹种的存在，误导了人们对片形吸虫地理分布和传播潜力的认知。本文介绍了片形科吸虫的分类，描述了肝片形吸虫和巨片形吸虫的地理分布，探讨了片形（属）吸虫与椎实螺科螺宿主之间的协同进化，以及人类活动和反刍动物迁移对片形吸虫病全球扩散传播的影响。此外，依据最新的分子生物学证据，本文还对非洲分布的片形吸虫中间宿主螺类进行了重新梳理。

关键词: 片形吸虫, 片形吸虫病, 椎实螺科, 中间宿主, 地理分布