The world's poorest children are likely to be malnourished when receiving their childhood
vaccines. It is uncertain whether this affects vaccine efficacy and whether the …

Abstract Background The World Health Organization recommends vitamin A
supplementation (VAS) at vaccination contacts after 6 mo of age to reduce mortality …

It has been suggested that administering vitamin A with the measles vaccine may reduce the
vaccine's immunogenicity. This trial examined the effect of supplementing vitamin A during …

1. BACKGROUND GLOBAL BURDEN OF VITAMIN A DEFICIENCY Vitamin A deficiency is
widespread among children in low-income countries. It is estimated that 4 million children …

BACKGROUND A body of evidence suggests that vaccines support the development of the
immune system and also improve overall health. OBJECTIVE To study the effect of the …

Aim: To test the efficacy of T‐cell‐dependent and T‐cell‐independent vaccines in rural
Gambian children suffering from a range of energy/protein and micronutrient deficiencies …

The world has entered the third year of the coronavirus disease 2019 (COVID-19) pandemic.
Vaccination is the primary public health strategy to protect against infection with severe …

The need for a systematic approach to research on vaccine effectiveness (VE) is increasing
with growing numbers of vaccines and complexity of immunization programs. The diverse …

Vitamin A supplementation reduces child mortality and severe morbidity in less developed
countries, and the Expanded Program on Immunization (EPI) offers an ideal opportunity to …

Vitamin A deficiencies and insufficiencies are widespread in developing countries, and may
be gaining prevalence in industrialized nations. To combat vitamin A deficiency (VAD), the …