Brooker S, Miguel E A, Moulin S, Luoba A I, Bundy D A, Kremer M
Wellcome Trust Centre for the Epidemiology of Infectious Disease, University of Oxford, South Parks Road, Oxford OX1 3FY, UK.
East Afr Med J. 2000 Mar;77(3):157-61. doi: 10.4314/eamj.v77i3.46613.
To describe the patterns of single and multiple helminth infection in school children from Busia District, Kenya.
A cross-sectional school survey using a randomly selected sample, forming part of an evaluation study of an ongoing deworming project.
Budalangi and Funyula divisions of Busia District, Western Province, Kenya.
One thousand seven hundred and thirty eight school children aged 8-20 years randomly selected from those enrolled in standards 3-8 in 25 randomly selected primary schools.
Overall, 91.7% of children were infected with either hookworm, Ascaris lumbricoides, Trichuris trichiura or Schistosoma mansoni. Infection prevalence of each species varied considerably among schools, being most marked for S. mansoni, where prevalence was highest in lakeshore schools. Children were typically infected with two or more species of helminth. Infection intensity of each geohelminth species was higher in school children infected with multiple species than in school children with single species infections, and intensity increased with the number of concurrent infections.
Helminth infections are exceptionally common among school children in Busia district, thus confirming the good sense of the school-based approach adopted by the control programme. The study also shows that there is an association between concurrent infection and the intensity of infection, which may have consequences for nutritional and educational status.
描述肯尼亚布西亚地区学童单一和多重蠕虫感染的模式。
一项横断面学校调查，采用随机抽样，是正在进行的驱虫项目评估研究的一部分。
肯尼亚西部省布西亚地区的布达兰吉和富尼尤拉分区。
从25所随机选取的小学3至8年级注册学生中随机抽取的1738名8至20岁的学童。
总体而言，91.7%的儿童感染了钩虫、蛔虫、鞭虫或曼氏血吸虫。各物种的感染率在不同学校之间差异很大，曼氏血吸虫最为明显，其感染率在湖滨学校最高。儿童通常感染两种或更多种蠕虫。多重感染的学童中每种土源性蠕虫的感染强度高于单一感染的学童，且感染强度随同时感染的数量增加而增加。
蠕虫感染在布西亚地区的学童中极为常见，从而证实了控制项目所采用的基于学校的方法的合理性。该研究还表明，同时感染与感染强度之间存在关联，这可能对营养和教育状况产生影响。
