Aragón-Pech R A, Ruiz-Piña H A, Rodríguez-Vivas R I, Cuxim-Koyoc A D, Reyes-Novelo E
Centro de Investigaciones Regionales "Dr. Hideyo Noguchi", Universidad Autónoma de Yucatán, Av. Itzaes No. 491 por 59 Col. Centro, Mérida, Yucatán, México, C.P. 97000.
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil Km. 15.5, Tizapán, 97100 Mérida, Yucatán, México.
Helminthologia. 2018 Jun 1;55(2):119-126. doi: 10.2478/helm-2018-0008. eCollection 2018 Jun.
Virginia opossum, , is a synanthropic mammal associated with peridomestic areas of Yucatán, However, little is known about the gastrointestinal parasite infections of this species. The infection prevalence, mean abundance and mean intensity of eggs and oocysts of gastrointestinal parasites, in opossums captured in the peridomestic areas were estimated in six rural localities of Yucatán, Mexico. Eighty-four faecal samples were processed by flotation technique. McMaster test was used to estimate the number of helminth eggs and protozoa oocysts per gram of feces. Seven genera of gastrointestinal parasites were identified, and then infection prevalence was estimated as follows: Protozoa sp. (51.9 %) and sp. (1 %); nematodes sp. (80.56 %), sp. (62.04 %), sp. (60.19 %), sp. (29.63 %), sp. (23.15 %), sp. (11.11 %), and sp. (1.85 %); and one acanthocephalan: sp. (14.81 %). This is the first study on the diversity of gastrointestinal parasites in Virginia opossums, and first evidence about the potential role of opossums in the transmission of zoonotic gastrointestinal parasites in peridomestic areas of Yucatán, Mexico.
北美负鼠是一种与尤卡坦半岛周边地区相关的共生哺乳动物。然而，关于该物种的胃肠道寄生虫感染情况却知之甚少。在墨西哥尤卡坦半岛的六个农村地区，对在周边地区捕获的负鼠体内胃肠道寄生虫卵和卵囊的感染率、平均丰度和平均强度进行了估计。通过浮选技术处理了84份粪便样本。使用麦克马斯特试验来估计每克粪便中蠕虫卵和原生动物卵囊的数量。鉴定出了七种胃肠道寄生虫属，然后感染率估计如下：原生动物 属（51.9%）和 属（1%）；线虫 属（80.56%）、 属（62.04%）、 属（60.19%）、 属（29.63%）、 属（23.15%）、 属（11.11%）和 属（1.85%）；以及一种棘头虫： 属（14.81%）。这是关于北美负鼠胃肠道寄生虫多样性的首次研究，也是关于负鼠在墨西哥尤卡坦半岛周边地区人畜共患胃肠道寄生虫传播中潜在作用的首个证据。
