Waiswa C, Picozzi K, Katunguka-Rwakishaya E, Olaho-Mukani W, Musoke R A, Welburn S C
Makerere University, Faculty of Veterinary Medicine, P.O. Box 7062, Kampala, Uganda.
Acta Trop. 2006 Aug;99(1):23-9. doi: 10.1016/j.actatropica.2006.06.005. Epub 2006 Jul 25.
A study was undertaken in three districts in south eastern Uganda endemic for human and animal trypanosomiasis, to investigate the status of the vector tsetse fly population. Apparent density (AD) of tsetse was between 2 and 21 flies/trap/day across the three districts, with Glossinia fuscipes fuscipes identified as the predominant species. Trypanosomes were observed in G.f. fuscipes with an infection rate, as determined by microscopy, of 1.55% across the three studied areas. However, trypanosome infections were only identified in female flies giving an infection rate of 2.39% for the female tsetse when this sex was considered in isolation; no male flies were found to be infected. Bloodmeal analysis highlighted 3 principal vertebrate hosts, namely cattle, pigs and monitor lizards (Varanus niloticus). The implication of this, in relation to the cycle of transmission for human infective trypanosomes between domestic animals and man, is discussed.
在乌干达东南部三个流行人和动物锥虫病的地区开展了一项研究，以调查采采蝇媒介种群的状况。在这三个地区，采采蝇的表观密度（AD）为每诱捕器每天2至21只蝇，其中fuscipes fuscipes舌蝇被确定为主要种类。通过显微镜检查确定，在fuscipes fuscipes舌蝇中观察到锥虫，在三个研究区域的感染率为1.55%。然而，仅在雌蝇中发现了锥虫感染，单独考虑该性别时，雌采采蝇的感染率为2.39%；未发现雄蝇感染。血餐分析突出了3种主要脊椎动物宿主，即牛、猪和尼罗巨蜥。本文讨论了这一点与家畜和人类之间人类感染性锥虫传播循环的关系。
