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.
Pathogenic diseases are caused by what is called a pathogen. Pathogens are parasitic organisms that cause disease int heir host. There are five different groups of pathogens: â¦ Viruses, bacteria, fungi, protozoans and parasitic worms. Deficiency diseases are just as the name suggests. physiological disease is caused when the normal or proper working of the body is affected because the body's organs have malfunctioned or it's cellular structures have chang â¦ ed over a period of time causing illness. Therefore most diseases you can name fall under the physiological category.