Yelifari L, Bloch P, Magnussen P, van Lieshout L, Dery G, Anemana S, Agongo E, Polderman A M
Ministry of Health, Upper East Region, P.O. Box 48, Bolgatanga, Ghana.
Trans R Soc Trop Med Hyg. 2005 Jan;99(1):32-8. doi: 10.1016/j.trstmh.2004.02.007.
A cross-sectional study was carried out in 216 randomly selected, representative rural villages in the northeastern part of Ghana from March 1995 to May 1998. Inhabitants of randomly selected households, stratified by age and gender, were included. The geographical position of villages was recorded with a global positioning system (GPS). The prevalence of Oesophagostomum, hookworm and Strongyloides stercoralis infections in a study population of 20250 people was determined by microscopic examination of larvae in stool cultures. The overall prevalence was 10.2, 50.6 and 11.6% for the three nematodes, respectively. Hookworm infections were seen in all but one (99.5%) and S. stercoralis in 88.4% of the 216 villages, while Oesophagostomum infections were found to be common in a limited area with prevalences varying from 0 to 75%. An association was found between Oesophagostomum and hookworm infection, both at the individual and at the village level. Spatial analysis of the prevalence data indicated that the endemic area is relatively clearly demarcated to the south of the study area.
1995年3月至1998年5月，在加纳东北部随机选取216个具有代表性的乡村开展了一项横断面研究。研究纳入了按年龄和性别分层的随机选取家庭中的居民。使用全球定位系统（GPS）记录村庄的地理位置。通过对粪便培养物中的幼虫进行显微镜检查，确定了20250名研究对象中食口线虫、钩虫和粪类圆线虫感染的患病率。三种线虫的总体患病率分别为10.2%、50.6%和11.6%。在216个村庄中，除一个村庄外，其他所有村庄均发现钩虫感染（99.5%），88.4%的村庄发现粪类圆线虫感染，而食口线虫感染在有限区域较为常见，患病率从0%到75%不等。在个体和村庄层面均发现食口线虫感染与钩虫感染之间存在关联。患病率数据的空间分析表明，流行区在研究区域南部相对明确划定。
