Pinot de Moira Angela, Fulford Anthony J C, Kabatereine Narcis B, Kazibwe Francis, Ouma John H, Dunne David W, Booth Mark
Department of Pathology, University of Cambridge, Cambridge, UK.
Trop Med Int Health. 2007 Jun;12(6):724-35. doi: 10.1111/j.1365-3156.2007.01842.x.
To explore patterns of water contact and Schistosoma mansoni exposure by age, sex, tribe and space within a single village.
For 10 months, we systematically observed water contacts made by the 800 inhabitants of a small Ugandan fishing village. In order to estimate cercarial exposure, times spent in water were weighted by snail infection levels, time of day and degree of immersion.
There were marked differences in water contact patterns between the two main tribes, which inhabited geographically distinct ends of the village resulting in geographically distinct spatial patterns of water contact. The distributions of the intermediate hosts, Biomphalaria sudanica and Biomphalaria stanleyi, also appeared to differ over small distances. This led to quite different exposure patterns between the two tribes, particularly amongst females.
Schistosoma mansoni exposure can vary markedly within a single village. Such non-homogenous patterns of exposure are likely to have wider implications for schistosomiasis control programmes and research studies.
在一个村庄内，按年龄、性别、部落和空间探索水接触模式以及曼氏血吸虫暴露情况。
持续10个月，我们系统观察了乌干达一个小渔村800名居民的水接触情况。为了估计尾蚴暴露情况，在水中停留的时间根据钉螺感染水平、一天中的时间以及浸入程度进行加权。
两个主要部落的水接触模式存在显著差异，这两个部落居住在村庄地理上不同的两端，导致水接触的空间模式在地理上也不同。中间宿主苏丹双脐螺和斯坦利双脐螺的分布在小范围内似乎也有所不同。这导致两个部落之间的暴露模式差异很大，尤其是在女性中。
在一个村庄内，曼氏血吸虫暴露情况可能有显著差异。这种非均匀的暴露模式可能对血吸虫病控制项目和研究有更广泛的影响。
