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.
Congenital disorder, also known as congenital disease, birth defect or anomaly, is a condition existing at or before birth regardless of cause.Of these diseases, those characterized by structural deformities are termed congenital anomalies and involve defects in a developing fetus.Birth defects vary widely in cause and symptoms. Any substance that causes birth defects is known as a teratogen.f these diseases, those characterized by structural deformities are termed congenital anomalies and involve defects in a developing fetus. Birth defects vary widely in cause and symptoms. Any substance that causes birth defects is known as a teratogen.