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- W2002053803 abstract "Vitamin A deficiency is a common problem in many of the poorer countries of the world, especially in Asia and certain parts of Africa. Vitamin A deficiency causes xerophthalmia, a potentially blinding eye condition, and it has been estimated that at least 500 000 of the world's children develop severe corneal xerophthalmia each year, 50% of whom will later become blind; three-quarters of this 50% die within a few months of becoming blind. This paper summarizes the epidemiology of vitamin A deficiency in the world, both in terms of its geographical distribution and some important risk factors for its occurrence. Evidence on the relationships between vitamin A deficiency, xerophthalmia and mortality and non-visual morbidity are discussed, with the conclusion that, although strong associations undoubtedly exist, causality has not been proved conclusively. Methods of intervention to improve vitamin A status at a population level - periodic administration of large doses of vitamin A, food fortification and dietary modifications - are then considered" @default.
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- W2002053803 date "1989-01-01" @default.
- W2002053803 modified "2023-10-18" @default.
- W2002053803 title "Vitamin A supplementation and child survival: magic bullet or false hope?" @default.
- W2002053803 doi "https://doi.org/10.1093/heapol/4.4.273" @default.
- W2002053803 hasPublicationYear "1989" @default.
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