| http://www.w3.org/ns/prov#value | - Low income is a known risk factor for micronutrient deficiencies including Vitamin A deficiency which can depress immune function.10,11 Vitamin A deficiency has been shown to affect the immune response by decreasing the number of T and B lymphocytes, and by altering the innate immunity response via the mucosal epithelia, natural killer cells, macrophages and monocytes.12 Data from the 2004 Canadia
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