Morbidity - The relative occurrence of a disease or a condition that causes illness.⏎
Metabolism - The sum total of chemical reactions that occur within a living cell both to build new molecules within the cell and break down and assimilate sources of energy for the cell.⏎
Immune System - The system of biological structures and processes that protects the body from foreign substances, including pathogens.⏎
Mucous Membrane - The moist linings of body passages and internal cavities involved with absorption and secretion of substances.⏎