Vitamin A deficiency is a major public health problem in the
developing world affecting 190 million children under 5 years old,
particularly in sub-Saharan Africa and southeast Asia (WHO, 2009).
Vitamin A deficiency leads to impaired vision, diminishes the ability to
fight infections and decreases growth rate and bone development, and
in severe cases can be fatal for children under 6 years of age (WHO,
2004). The prevalence of vitamin A deficiency in the Democratic
Republic of Congo (DRC) and Burundi was estimated at 42.2% and
42.6%, respectively, in 2007, and is classified as a ‘‘severe public health
problem’’ by the United Nations’ Standing Committee on Nutrition
(SCN, 2010). Vitamin A deficiency primarily affects children and
women and hinders the development of human potential, with effects
on social and economic development (Ruel, 2001).
Vitamin A deficiency is a major public health problem in thedeveloping world affecting 190 million children under 5 years old,particularly in sub-Saharan Africa and southeast Asia (WHO, 2009).Vitamin A deficiency leads to impaired vision, diminishes the ability tofight infections and decreases growth rate and bone development, andin severe cases can be fatal for children under 6 years of age (WHO,2004). The prevalence of vitamin A deficiency in the DemocraticRepublic of Congo (DRC) and Burundi was estimated at 42.2% and42.6%, respectively, in 2007, and is classified as a ‘‘severe public healthproblem’’ by the United Nations’ Standing Committee on Nutrition(SCN, 2010). Vitamin A deficiency primarily affects children andwomen and hinders the development of human potential, with effectson social and economic development (Ruel, 2001).
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