Capsules increase virulence of some organisms because they pre â¦ vent desiccation, are able to stick to surfaces and provide a mechanism for attachment to tissue such as respiratory epithelial tissue in humans. Capsules are also slippery and often evade a human's immune system by avoiding phagocytosis from certain leukocytes.
Definition of DEFICIENCY DISEASE. : a disease (as scurvy) caused by a lack of essential dietary elements and especially a vitamin or mineral.
Nutrition diseases are diseases in humans that are directly or indirectly caused by a lack of essential nutrients in the diet. Nutrition diseases are commonly associated with chronic malnutrition. Additionally, conditions like obesity from overeating can also cause, or contribute to, serious health problems.