马泰勒虫在骡子中的经胎盘传播：我们应该担心吗？
Transplacental transmission of Theileria equi in mules: Should we worry?
作者信息
Françoso Rafael, Riccio Amanda Vallone, Fernandes Claudia Barbosa, Alonso Maria Augusta, Belli Carla Bargi
机构信息
College of Veterinary Medicine and Animal Science, University of São Paulo, Department of Internal Medicine, São Paulo, Brazil.
College of Veterinary Medicine and Animal Science, University of São Paulo, Department of Animal Reproduction, São Paulo, Brazil.
出版信息
Vet Parasitol. 2018 Dec 15;264:39-41. doi: 10.1016/j.vetpar.2018.10.017. Epub 2018 Oct 26.
Equine piroplasmosis, disease globally responsible for significant economic losses, is caused by the transmission of the hemoprotozoa Theileria equi and Babesia caballi by ticks. Transplacental transmission has been reported previously in horses, which is not the case for mules´ foals. The present study investigated, by Real Time-PCR (RT-PCR), the presence of both Theileria equi and Babesia caballi in newborn mules before the ingestion of colostrum. Blood samples of 18 mares and their respective mules´ foals were collected and analyzed by RT-PCR. Only one mare was positive for B. caballi. In contrast, 13 mares were positive for T. equi, with two foals (11.1%) positive for the same protozoon, both of affected mares. We may conclude that transplacental transmission of Theileria equi also occurs in mules which may be an important concern while breeding such animals.
马焦虫病是一种在全球范围内造成重大经济损失的疾病，由蜱传播血液原虫马泰勒虫和驽巴贝斯虫引起。此前已有报道马存在经胎盘传播的情况，但骡驹并非如此。本研究通过实时聚合酶链反应（RT-PCR）调查了初乳摄入前新生骡驹体内马泰勒虫和驽巴贝斯虫的存在情况。采集了18匹母马及其各自骡驹的血样，并通过RT-PCR进行分析。仅1匹母马的驽巴贝斯虫呈阳性。相比之下，13匹母马的马泰勒虫呈阳性，其中2匹骡驹（11.1%）感染了相同的原虫，这2匹骡驹的母马均受感染。我们可以得出结论，马泰勒虫在骡驹中也会发生经胎盘传播，这在繁育此类动物时可能是一个重要问题。
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