Debalke Serkadis, Worku Amare, Jahur Nejat, Mekonnen Zeleke
Department of Medical Laboratory Science and Pathology, Jimma University, Jimma, Ethiopia.
Ethiop J Health Sci. 2013 Nov;23(3):237-44. doi: 10.4314/ejhs.v23i3.6.
Soil transmitted helminth infections are among the most common human infections. They are distributed throughout the world with high prevalence rates in tropical and sub-tropical countries mainly because of lack of adequate sanitary facilities, inappropriate waste disposal systems, lack of safe water supply, and low socio-economic status.
A comparative cross sectional study was conducted from December 2011 to June 2012 to determine and assess the prevalence of soil transmitted helminths and their associated factors among government and private primary school children. Stool samples were collected from 369 randomly selected children and examined microscopically for eggs of soil transmitted helminth following McMaster techniques. Soil samples were collected from different parts of the school compound and microscopic examination was performed for eggs of the helminths using sodium nitrate flotation technique.
The overall prevalence rate of soil transmitted helminth infections in private and government schools was 20.9% and 53.5% respectively. T. trichiura was the most common soil transmitted helminth in both schools while hookworm infections were identified in government school students only. Type of school and sex were significantly associated with soil transmitted helminth. Soil contamination rate of the school compounds was 11.25% with predominant parasites of A. lumbricoides.
Higher prevalence of soil transmitted helminth infection was found among government school students. Thus, more focus, on personal hygiene and sanitary facilities, should be given to children going to government schools.
土源性蠕虫感染是最常见的人类感染之一。它们遍布全球,在热带和亚热带国家的患病率很高,主要原因是缺乏足够的卫生设施、不当的废物处理系统、缺乏安全的供水以及社会经济地位较低。
于2011年12月至2012年6月进行了一项比较横断面研究,以确定和评估政府和私立小学儿童中土源性蠕虫的患病率及其相关因素。从369名随机选择的儿童中采集粪便样本,并按照麦克马斯特技术进行显微镜检查,以检测土源性蠕虫的虫卵。从校园的不同部位采集土壤样本,并使用硝酸钠浮选技术对蠕虫虫卵进行显微镜检查。
私立学校和政府学校中土源性蠕虫感染的总体患病率分别为20.9%和53.5%。在两所学校中,毛首鞭形线虫是最常见的土源性蠕虫,而钩虫感染仅在政府学校的学生中发现。学校类型和性别与土源性蠕虫感染显著相关。校园的土壤污染率为11.25%,主要寄生虫为蛔虫。
政府学校学生中土源性蠕虫感染的患病率较高。因此,应更加关注就读于政府学校的儿童的个人卫生和卫生设施。