Rahman A H A
Central Veterinary Research Laboratories, Soba, Khartoum, Sudan.
Rev Sci Tech. 2005 Dec;24(3):965-72.
Entomological and trypanosomosis surveys were conducted in the Blue Nile area between Admazien and Khartoum. The surveys showed the area to be tsetse free. The only species of trypanosome found to infect cattle in this study was Trypanosoma vivax, which infected some of the local cattle that had no history of entering tsetse belts. The prevalence of disease varied with the season. High disease prevalence coincided with the periods when tabanid and stomoxy flies were abundant. The study showed that the months when biting flies were most numerous coincided with trypanosomosis outbreaks, but even minimal numbers of these flies may cause the cycle of mechanical transmission to continue in stable enzootic conditions.
在青尼罗州介于阿德马齐恩和喀土穆之间的地区开展了昆虫学和锥虫病调查。调查显示该地区没有采采蝇。本研究中发现的唯一感染牛的锥虫种类是活泼锥虫，它感染了一些没有进入采采蝇带病史的当地牛。疾病流行率随季节变化。高疾病流行率与虻和厩螫蝇大量出现的时期一致。研究表明，叮咬蝇数量最多的月份与锥虫病暴发相吻合，但即使这些蝇数量极少，也可能导致机械传播循环在稳定的动物疫病流行条件下持续下去。
