Worms infect more than one third of the world's population, with the most intense infections in children and the poor. In the poorest countries, children are likely to be infected from the time they stop breast-feeding, and to be continually infected and re-infected for the rest of their lives. Only rarely does infection have acute consequences for children. Instead, the infection is long-term and chronic, and can negatively affect all aspects of...
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School deworming : Desparasitacao nas escolas (Portuguese). HNP notes|Public Health at a Glance Washington, DC: World Bank. http://documents.worldbank.org/curated/en/481891468147857661