Responding to other audience questions, Dr Checkley explained that lung development continues through eight years of age. VAS administered after birth could potentially prevent or lessen the effects of inadequate vitamin A nutriture during the fetal period. They are in the process of analyzing data from the first NNIPS cohort that may shed light on this issue. He reiterated that their findings now link decades-old information from the animal literature with population studies. As to their public health relevance, more information is needed on the relationship between lung function and later life adult disease. However, the fact that child- hood supplementation reduced the severity of ear infections and thereby protected against later-life hearing loss truly speaks to the potential for longer-term benefits. Until these relationships are better under- stood, the international nutrition community may be sorely underestimating the true cost-benefit ratios of micronutrient interventions.
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