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AN OUTBREAK OF BESNOITIOSIS IN MINIATURE DONKEYS

机译：小型驴的狂犬病暴发

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摘要

Fourteen miniature donkeys (Equus asinus) in a mid-Michigan herd of 38 animals presented with clinical signs of besnoitiosis, including the presence of typical tissue cysts in the ocular sclera, the buccal and nasal mucosa, together with characteristic dermatitis in specific areas of the body. The common histopathological change seen was the presence of many 100–200-μm diameter, thick walled, typical Besnoitia sp. tissue cysts together with a chronic cellular response associated with degenerating cysts. Microscopy of isolated scleral cysts and skin biopsies showed the presence of protozoal organisms consistent in morphology with that of Besnoitia bennetti bradyzoites. Molecular analysis of these parasites indicates that they differ from previously described coccidia, including Besnoitia sp., from rabbits and opossums. Isolated cases of infection with this agent have been reported infrequently in equids; however, this is the first report of an outbreak in a herd of donkeys in the United States.
机译：在密歇根州中部的38只动物中，有14只小型驴（马驴）表现出了贝氏病的临床体征，包括眼巩膜，颊和鼻粘膜中存在典型的组织囊肿，以及特定部位的皮炎。身体。常见的组织病理学变化是存在许多直径为100-200μm，壁厚，典型的Besnoitia sp。组织囊肿以及与变性囊肿相关的慢性细胞反应。显微镜下分离出的巩膜囊肿和皮肤活检显示，原生动物生物的形态与贝氏隐孢子虫缓殖子的形态一致。这些寄生虫的分子分析表明，它们不同于先前描述的球虫，包括兔和负鼠的球孢菌（Besnoitia sp。）。在设备中很少报告有单独的这种药物感染病例；但是，这是美国第一批驴群暴发的报告。

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  • 来源
    《Journal of Parasitology》 |2005年第4期|p.00000877-00000881|共5页
  • 作者

    Hany M. Elsheikha Charles D. Mackenzie* Benjamin M. Rosenthal† Judith V. Marteniuk Barbara Steficek‡ Sharon Windsor§ A. Mahdi Saeed and Linda S. Mansfield;

  • 作者单位

    Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan 48824. mackenz8@msu.edu*Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan 48824, and Biological Imaging Center, Western Michigan University, Kalamazoo, Michigan 49007†Animal Parasitic Diseases Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville Agricultural Research Center, Animal and Natural Resources Institute, Building 1080, BARC-East, Beltsville, Maryland 20705-2350‡Diagnostic Center for Population and Animal Health, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan 48824§216N Meech Road, Dansville, Michigan 48819Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, Michigan 48824;

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