Crompton D W, Savioli L
Department of Zoology, University of Glasgow, Scotland.
Bull World Health Organ. 1993;71(1):1-7.
About a third of the population in the cities of developing countries live in slums and shanty towns. By the year 2000 it is estimated that this number will grow to 2200 million, and by 2025 about 57% of the population in developing countries will be in urban areas. The prevalence of infections caused by Entamoeba histolytica and Giardia intestinalis and the prevalence and intensity of Ascaris lumbricoides and Trichuris trichiura infections may increase among the rural populations who are migrating to these urban and suburban settings owing to the favourable conditions for transmission. Urgent consideration should therefore be given to improving sanitation in deprived urban areas and to treating periodically these populations to reduce the worm burden, especially in school-age children.
发展中国家城市中约三分之一的人口居住在贫民窟和棚户区。据估计,到2000年,这一数字将增至22亿,到2025年,发展中国家约57%的人口将居住在城市地区。由于传播条件有利,在向这些城市和城郊地区迁移的农村人口中,溶组织内阿米巴和蓝氏贾第鞭毛虫引起的感染患病率以及蛔虫和鞭虫感染的患病率和感染强度可能会增加。因此,应迫切考虑改善贫困城市地区的环境卫生,并定期对这些人群进行治疗,以减轻蠕虫负担,尤其是对学龄儿童。