The distribution and epidemiology of bovine trypanosomosis in Malawi
The distribution and epidemiology of bovine trypanosomosis in Malawi
复制标题
DOI：
10.1016/s0304-4017(99)00222-8
复制
发表时间：
2000-03-01
影响因子：
2.6
通讯作者：
Makhambera, P
中科院分区：
文献类型：
--
作者：
Van den Bossche, P;Shumba, W;Makhambera, P
1995- 1997年进行了一项调查，以更新马拉维牛锥虫病的分布情况并阐明其流行病学。使用了寄生虫学和血清学（抗锥虫抗体检测酶联免疫吸附试验（ELISA））诊断方法。在已知采采蝇疫源地附近采样的牛中检测到锥虫感染。牛抗锥虫抗体的分布表明，牛锥虫病的分布比寄生虫学流行率数据所建议的更广泛。这是由于采采蝇（主要是桑舌蝇和桑舌蝇）的季节性活动造成的。pallidipes）从其主要栖息地和G.短须沿Kasungu国家公园和Nkhotakota野生动物保护区边缘的气味诱饵，除臭处理，目标障碍沿着似乎是有效的，防止采采蝇从游戏区外移动和接触牛。抗锥虫抗体检测ELISA证明是一个有用的工具，在建立牛锥虫病的分布。此外，牛抗锥虫抗体的分布和流行有助于澄清牛锥虫病在马拉维的流行病学。抗锥虫抗体检测ELISA在检测刚果锥虫感染具有较高的灵敏度。在寄生虫学阴性动物中，平均红细胞压积在没有抗锥虫抗体的动物中较高。红细胞压积随抗体滴度的增加而降低。(C)2000 Elsevier Science B. V.保留所有权利。
A survey to update the distribution and clarify the epidemiology of bovine trypanosomosis in Malawi was conducted between 1995-97. Use was made of parasitological and serological (anti-trypanosomal antibody-detection Enzyme-Linked Immunosorbent Assay (ELISA) diagnostic methods. Trypanosomal infections were detected in cattle sampled adjacent to known tsetse foci. The distribution of cattle with anti-trypanosomal antibodies indicated that the distribution of bovine trypanosomosis was more widespread than the parasitological prevalence data suggested. This is attributed to the seasonal movement of tsetse (mainly Glossina morsitans morsitans and G. pallidipes) from its prime habitat and the presence of localized foci of G. brevipalpis. The odour-baited, insecticide-treated, target barriers along the edge of Kasungu National Park and the Nkhotakota Game Reserve appeared to be effective in preventing tsetse from moving outside the game areas and contacting cattle.The anti-trypanosomal antibody-detection ELISA proved to be a useful tool in establishing the distribution of bovine trypanosomosis. Moreover, the distribution and prevalence of cattle with anti-trypanosomal antibodies was instrumental in clarifying the epidemiology of bovine trypanosomosis in Malawi, The anti-trypanosomal antibody-detection ELISA had high sensitivity in detecting Trypanosoma congolense infections. In parasitologically negative animals, the average packed cell volume was higher in those that had no anti-trypanosomal antibodies.:The packed cell volume decreased with increasing antibody titre. (C) 2000 Elsevier Science B.V. All rights reserved.