Grupo de Investigación: Paleoparasitología, Instituto de Investigaciones en Producción, Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, UNMdP-CONICET, Juan B Justo 2250, 7600 Mar del Plata, Buenos Aires, Argentina.
Instituto de Diversidad y Evolución Austral, Centro Nacional Patagónico (IDEAus-CENPAT), Argentina; Facultad Regional Chubut, Universidad Tecnológica Nacional (FRCh-UTN), Argentina.
Parasitol Int. 2020 Oct;78:102147. doi: 10.1016/j.parint.2020.102147. Epub 2020 May 20.
Parasite remains in micromammal fecal pellets collected from the paleontological site "Cueva Peligro" (CP 43°40'18"S, 66°24'52"W), Chubut Province, Argentina, were examined. The samples were obtained from two grids, dated between 1220 ± 70C yr B.P. to modern dates. Fecal pellets were whole processed, rehydrated, homogenized, and examined via light microscopy. Eggs of parasites found were measured and photographed. Fecal pellets belong to one or more insectivore to omnivore unidentified micromammal species, possibly sigmodontine rodents. A high number of helminthes species was recorded (11 species), eight nematodes, two anoplocephalid cestodes and one acanthocephalan species. The sigmodontine-parasite relationship varied throughout the studied period and between studied grids. This is the first time that Gongylonema sp. and Syphacia sp. are reported from ancient times from Patagonia. The obtained results contribute to the knowledge of parasite assemblages associated to native South American sigmodontine rodents and the zoonoses present in the area throughout the lasts 1200 years.
从阿根廷丘布特省的“Cueva Peligro”（CP 43°40'18"S, 66°24'52"W）古生物学遗址采集的微小动物粪便样本中检查了寄生虫残留。这些样本来自两个网格，年代在 1220±70Cyr BP 到现代之间。对粪便样本进行了整体处理、水化、均质化，并通过光学显微镜进行了检查。发现的寄生虫卵进行了测量和拍照。粪便样本属于一种或多种未鉴定的食虫动物或杂食性微小动物物种，可能是食虫目啮齿动物。记录了大量的寄生虫物种（11 种），包括 8 种线虫、2 种圆叶目绦虫和 1 种棘头虫。在整个研究期间和两个研究网格之间，Sigmodontinae-寄生虫关系都有所变化。这是首次从古时期的巴塔哥尼亚地区报道 Gongylonema sp. 和 Syphacia sp.。获得的结果有助于了解与当地南美洲食虫目啮齿动物相关的寄生虫组合，以及该地区过去 1200 年来存在的人畜共患病。
