Unabated schistosomiasis transmission in Erinle River Dam, Osun State, Nigeria: evidence of neglect of environmental effects of development projects
Unabated schistosomiasis transmission in Erinle River Dam, Osun State, Nigeria: evidence of neglect of environmental effects of development projects
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DOI：
10.1111/j.1365-3156.2006.01628.x
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发表时间：
2006-06-01
影响因子：
3.3
通讯作者：
Ofoezie, I. E.
中科院分区：
文献类型：
--
作者：
Oladejo, S. O.;Ofoezie, I. E.
尼日利亚奥孙州埃林勒水坝周围的埃及血吸虫感染状况在该地区首次报告 10 年后进行了调查。 2000 年 3 月至 2001 年 2 月期间，对两个农村社区（伊利和奥巴岛）的学童进行了感染情况检查，并对湖泊进行了蜗牛中间宿主物种调查。两个社区检查的 320 名儿童的总体感染率为 46.6%（伊利为 52.3%，奥巴岛为 43.0%）。伊利岛和奥巴岛的平均感染强度分别为每 10 毫升尿液 144.2 +/- 389 和 156.5 +/- 378 个虫卵（总体：每 10 毫升尿液 148.8 +/- 378 个虫卵）。两个社区以及男孩和女孩之间的患病率和强度相当，但随年龄变化显着（P < 0.05）。之前的一项研究发现，球布林螺是当地的中间宿主物种，在该湖中数量丰富，并且全年都有发生，这与之前报道的季节性发生情况形成鲜明对比。感染率和感染强度也比 10 年前报告的水平显着增加。这些结果清楚地表明，在此期间，湖中的传播仍未减弱。讨论了需要采取紧急和有效的国家控制计划，以减少尼日利亚埃林勒和其他水坝血吸虫病对公共卫生的重要性。
The status of Schistosoma haematobium infection around Erinle Dam in Osun State, Nigeria, was investigated 10 years after the disease was first reported in the area. School children in two rural communities (Ilie and Oba-Ile) were examined for infection and the lake surveyed for snail intermediate host species between March 2000 and February 2001. Overall infection rate among 320 children examined in both communities was 46.6% (52.3% in Ilie and 43.0% in Oba-Ile). Mean intensity of infection ranged between 144.2 +/- 389 and 156.5 +/- 378 eggs per 10 ml urine in Ilie and Oba-Ile respectively (overall: 148.8 +/- 378 eggs per 10 ml urine). Prevalence and intensity were comparable in both communities and between boys and girls, but varied significantly (P < 0.05) with age. Bulinus globosus identified by a previous study as the local intermediate host species was found to be abundant in the lake and occurred throughout the year, in contrast to seasonal occurrence reported previously. Both prevalence and intensity of infection also increased significantly over the levels reported 10 years earlier. These results are clear indications that transmission has remained unabated in the lake during the period. The need for urgent and effective national control programme to reduce the public health importance of schistosomiasis in Erinle and other dams in Nigeria was discussed.