Vitamin A deficiency affects about 190 million preschool-age children, mostly from Africa and South-East Asia. In infants and children, vitamin A is essential to support rapid growth and to help combat infections. Inadequate intakes of vitamin A may lead to vitamin A deficiency which can cause visual impairment in the form of night blindness, may increase the risk of illness and death from childhood infections, and may compound the effects of HIV infection.
Research has shown that vitamin A supplementation in HIV-infected infants and children is safe and effective in reducing illness and death. Vitamin A can be safely provided to children in a large dose, rather than more frequent smaller doses, as it can be stored by the body and released over time as needed.
Many countries have successfully integrated strategies to deliver vitamin A supplements to infants and children in their national health policies, including delivery during routine health visits and immunizations.