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首页> 外文期刊>The American Journal of Tropical Medicine and Hygiene >Spatial and temporal variations in local transmission of Schistosoma haematobium in Msambweni, Kenya.
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Spatial and temporal variations in local transmission of Schistosoma haematobium in Msambweni, Kenya.

机译：肯尼亚Msambweni血吸虫血吸虫局部传播的时空变化

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摘要

As part of an extensive study of the eco-epidemiology of urinary schistosomiasis along the southern coast of Kenya, spatial and temporal transmission patterns were associated with various ponds infested with Bulinus snails. The household-level spatial pattern of infection for children of various age groups in 2000 was contrasted with historical data from 1984. Significant local clustering of high and low infection levels among school age children was detected, and the spatial extent of clusters and their direction from specific water sources were measured. High infection levels were clustered around ponds known to contain Bulinus nasutus snails that shed Schistosoma haematobium cercariae, and low infection levels were concentrated near a river where intermediate host snails were rarely found. The spatial patterns of infection varied between 2000 and 1984 and between age groups. High levels of infection were clustered around different transmission foci in the two study periods, and, for younger childrenin 2000, were clustered nearer to the transmission foci than for the older children. Simultaneous consideration of the effects of different foci on transmission will allow for targeted application of control measures aimed at interrupting S. haematobium transmission at a local level.
机译：作为肯尼亚南部沿海泌尿血吸虫病生态流行病学广泛研究的一部分，时空传播方式与布卢努斯蜗牛感染的各种池塘有关。将2000年各个年龄段儿童的家庭感染空间格局与1984年的历史数据进行对比。检测到学龄儿童中高，低感染水平的显着局部聚类，并且聚类的空间范围及其发展方向测量了特定的水源。高感染水平聚集在池塘附近，这些池塘都含有散发出血丝虫血吸虫的纳氏梭菌蜗牛，而低感染水平则集中在很少发现中间寄主蜗牛的河附近。 2000年至1984年以及不同年龄组之间，感染的空间格局有所不同。在两个研究期中，高水平的感染聚集在不同的传播灶周围，并且，对于2000年以下的年幼儿童，与较大的孩子相比，其聚集在更靠近传播灶的地方。同时考虑到不同疫源地对传播的影响，将有针对性地应用旨在在地方一级中断血红球菌传播的控制措施。

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