农村居民无计划,无控制地继续不断向城市迁移并定居,造成发展中国家的城市化问题。既无文化又缺技术的贫困农民离开农村涌向城市寻找工作,且不再逆向流动。Nnochiri早在1968年就叙述了尼日利亚这种情况下引起的公共卫生问题,特别是关系到寄生虫感染和卫生保健的规定。本文概述无数农村人口向城市和市郊贫民区或小镇迁移、定居,给城市居民带来寄生虫感染这一公 Rural residents continue to move to and settle in the cities unplanned and uncontrolled, causing urbanization in developing countries. Impoverished peasants who lack both culture and skills leave the countryside and flock to the cities to find work and no longer move in the opposite direction. As early as 1968, Nnochiri described the public health problems caused by this situation in Nigeria, especially the provisions concerning parasitic infections and health care. This article summarizes the numerous rural population to the city and suburban slums or towns to migrate, settle, bring city residents parasite infection