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首页> 外文期刊>Tropical Animal Health and Production >'Ormilo disease' a disorder of zebu cattle in Tanzania: bovine cerebral theileriosis or new protozoan disease?
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'Ormilo disease' a disorder of zebu cattle in Tanzania: bovine cerebral theileriosis or new protozoan disease?

机译：“ Ormilo病”是坦桑尼亚的一群封牛病：牛脑回虫病还是新的原生动物病？

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"Ormilo" disease is a neurological disorder of cattle described by Maasai herders in Tanzania. It is attributed to infection by Theileria species, although no detailed data are available in the literature. The authors describe the macroscopical and histological changes observed in 30 brains of indigenous short-horn zebu cattle from Northern Tanzania, aged 2-9 years, with the characteristic neurological signs of "Ormilo". Moreover, the ultrastructural details observed in 14 selected brain samples were reported. Areas of congestion and hemorrhages, associated with the obstruction of the cerebral vessels with large numbers of parasitized lymphoid cells, were observed. Electron microscopy showed the presence of intralymphocytic parasites morphologically comparable to flagellated protozoa, not previously described in the lymphoid cells of cattle, but only reported during the sexual stages within the vector. Theileria taurotragi was detected by polymerase chain reaction (PCR) and reverse line blot (RLB) in nine samples. The authors hypothesize that the parasite detected by electron microscopy could be a strain of a Theileria endemic to this region till now not investigated, having an intralymphocytic phase and being associated with other Theileria spp. infestation. Further studies are needed to better understand the etiology of "Ormilo" disease and to characterize the morphology of the observed parasite, clarifying its role in the disease in Tanzania.
机译：“ Ormilo”疾病是坦桑尼亚的Maasai牧民描述的牛的神经系统疾病。尽管文献中没有详细的数据，但它归因于泰勒菌属的感染。作者描述了在2-9岁的坦桑尼亚北部土著短角牛的30头大脑中观察到的宏观和组织学变化，这些神经元具有“ Ormilo”的特征性神经学体征。此外，还报道了在14个选定的大脑样本中观察到的超微结构细节。观察到充血和出血区域，与大量寄生虫淋巴样细胞阻塞脑血管有关。电子显微镜显示，形态上与鞭毛原生动物相当的淋巴细胞内寄生虫的存在，以前没有在牛的淋巴细胞中描述过，但仅在载体的有性阶段报告过。通过聚合酶链反应（PCR）和反向线印迹（RLB）在九个样品中检测到牛头虫。作者假设，通过电子显微镜检测到的寄生虫可能是该区域特有的泰勒虫的一种菌株，至今尚未研究，具有淋巴细胞内相并与其他泰勒菌属有关。侵扰。需要进一步研究以更好地了解“ Ormilo”疾病的病因并表征观察到的寄生虫的形态，以阐明其在坦桑尼亚的疾病中的作用。

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