It is a major public health problem with adverse consequences particularly for women of reproductive age and for young children. (gmwatch.org)
Many people in the developing world do not get enough vitamin A or beta - carotene from the food they eat, contributing to the serious public health problem of vitamin A deficiency. (irri.org)
RNA viruses pose a significant public health problem worldwide because their high mutation rate allows them to escape the immune response. (sciencedaily.com)