Jemaneh L
Department of Microbiology and Parasitology, Faculty of Medicine, Addis Ababa University, P.O.Box 9086, Addis Ababa.
Ethiop Med J. 2000 Apr;38(2):105-18.
In a cross-sectional survey undertaken in 22 communities of 6 districts in the South Gondar Zone of the Amhara National Regional State, 2279 school children had their stools examined for schistosomiasis mansoni and soil-transmitted helminths using the Kato-Katz technique. Overall the prevalence rates were 16.4%, 28.9%, 9.5% and 12.9% for S. mansoni, A. lumbricoides, T. trichiura and the hookworms, respectively. S. mansoni infection was registered from 14 of the 22 communities, in more than 60% of which the prevalence was over 20%. Infection with A. lumbricoides was noted in 20 schools and except in three schools the prevalence was above 20%. T. trichiura infection was found in 19 of the 22 schools with prevalence rates from 1.7% to 20.0%. Infection due to the hookworms was recorded in 17 schools, in 40% of which the prevalence was 20% or more. Generally communities of the western districts of the zone had higher infection rates of schistosomiasis mansoni and soil-transmitted helminthiasis as compared to those in the eastern districts. The presence of S. mansoni foci in 9 communities is reported for the first time. In general neither sex nor age were related to prevalence or intensity of infection. Forty nine percent of the examined children had one or more types of helminths, of which 32.5%, 13.3% and 2.4% were single, double and triple infections, respectively. A. lumbricoides commonly occurred with the other helminths. Multiplicity of infection was not sex related. 14.6%, 28.4%, 8.3% and 12.1% of the children had moderate or heavy infections of schistosomiasis mansoni, ascariasis, trichuriasis and hookworms, respectively.
在阿姆哈拉民族地区州南贡德尔区6个县的22个社区开展的一项横断面调查中，使用改良加藤厚涂片法对2279名学童的粪便进行了曼氏血吸虫病和土壤传播蠕虫病检测。总体而言，曼氏血吸虫、蛔虫、鞭虫和钩虫的感染率分别为16.4%、28.9%、9.5%和12.9%。在22个社区中的14个社区发现了曼氏血吸虫感染，其中超过60%的社区感染率超过20%。在20所学校发现了蛔虫感染，除3所学校外，其他学校的感染率均高于20%。在22所学校中的19所发现了鞭虫感染，感染率在1.7%至20.0%之间。在17所学校记录到钩虫感染，其中40%的学校感染率为20%或更高。一般来说，该地区西区社区的曼氏血吸虫病和土壤传播蠕虫病感染率高于东区社区。首次报告了9个社区存在曼氏血吸虫病疫点。总体而言，性别和年龄均与感染率或感染强度无关。49%的受检儿童感染了一种或多种蠕虫，其中单一感染、双重感染和三重感染的比例分别为32.5%、13.3%和2.4%。蛔虫通常与其他蠕虫共同感染。感染的多重性与性别无关。分别有14.6%、28.4%、8.3%和12.1%的儿童患有中度或重度曼氏血吸虫病、蛔虫病、鞭虫病和钩虫病。
