Page:Bacteria, why do they make me sick?.pdf/16



A disease is the presence of infection and its symptoms.

The infectious disease, or infective process caused by the virulent bacteria, starts with the colonization, which is the presence of the bacteria in the body. Then, the infection occurs, which is when bacteria attack the cells or tissues using their mechanisms or virulence factors.



Now… could you define the following concepts in your own words? Disease Invasion Adhesion