Deficiency decreases maturation of T-helper cells in the thymus gland, which can affect risk of immune diseases and infections. Zinc has an important role in immune performance the inflammation and repair processes. Copper. Helps phagocytosis and increases the number of lymphocytes and neutrophils. Zinc and copper work together and need to be properly balanced with each other.

says “Nutrition News and Views” Vol. 18, No.4 page 5