Romig Thomas, Wassermann Marion
University of Hohenheim, Parasitology Unit, 70599, Stuttgart, Germany.
University of Hohenheim, Center for Biodiversity and Integrative Taxonomy, 70599, Stuttgart, Germany.
Int J Parasitol Parasites Wildl. 2024 Feb 8;23:100913. doi: 10.1016/j.ijppaw.2024.100913. eCollection 2024 Apr.
Transmission of spp. in life cycles that involve mainly wildlife is well recognized for those species with small mammals as intermediate hosts (e. g. ), as well as for and the 'northern' genotypes of (G8 and G10). In contrast, the remaining taxa of sensu lato are best known for their domestic life cycles, and the numerous wild mammal species (mainly ungulates) that have been recorded with cystic echinococcosis in the past were mainly considered a result of spill-over from the dog-livestock transmission system. This view was challenged with the advent of molecular characterization, allowing discrimination of the metacestodes, although the contribution of wild mammals to various life cycles has remained uncertain for scarcity of wildlife studies. Numerous records of cysts in wild ungulates date back to the 20th century, but cannot with certainty be allocated to the species and genotypes that are recognized today. This means that our current knowledge is largely restricted to studies of the past two decades that kept adding gradually to our concepts of transmission in various geographic regions. In particular, new insights were gathered in the past years on s.l. in wildlife of sub-Saharan Africa, but also on transmission patterns of in previously neglected regions, e. g. North America. Here, an update is provided on the current state of knowledge on wild mammals as hosts for all species, listing >150 species of wild hosts with references, as well as estimates on their epidemiological impact and our current gaps of knowledge.
对于那些以小型哺乳动物作为中间宿主的物种(例如),以及棘球绦虫的“北部”基因型(G8和G10),在主要涉及野生动物的生命周期中棘球绦虫属物种的传播已得到充分认识。相比之下,狭义棘球绦虫属的其余分类群以其在家庭环境中的生命周期最为人所知,过去记录有囊型包虫病的众多野生哺乳动物物种(主要是有蹄类动物)主要被认为是犬 - 家畜传播系统溢出的结果。随着分子特征分析方法的出现,这种观点受到了挑战,分子特征分析能够区分中绦期幼虫,尽管由于野生动物研究的匮乏,野生哺乳动物在各种棘球绦虫生命周期中的作用仍不明确。野生有蹄类动物体内囊肿的众多记录可追溯到20世纪,但无法确定地归属于如今所认可的棘球绦虫物种和基因型。这意味着我们目前的知识很大程度上局限于过去二十年的研究,这些研究逐渐丰富了我们对不同地理区域传播情况的认识。特别是在过去几年中,我们对撒哈拉以南非洲野生动物中的狭义棘球绦虫有了新的认识,同时也对以前被忽视的地区(如北美)的棘球绦虫传播模式有了新的认识。在此,提供了关于野生哺乳动物作为所有棘球绦虫物种宿主的当前知识状态的最新信息,列出了150多种野生宿主并给出参考文献,以及对它们的流行病学影响的估计和我们目前的知识空白。