Hookworm is an intestinal parasite most commonly found in tropical and sub-tropical climates of Africa, Asia and Latin America.  Hookworm, one of three members of a family of parasites known as the soil-transmitted helminths (STHs), are half-inch long worms that attach themselves to the intestinal wall and feed on human blood. Left untreated, hookworm causes severe intestinal blood loss leading to iron-deficiency anemia and protein malnutrition, particularly in pregnant women and children. Chronic hookworm infection in children contributes to physical and intellectual impairment, learning difficulties and poor school performance. This often leads to an under-achieving.