Diagram Of Infection. Infection can be prevented by breaking the chain of infection. An infection occurs when germs enter the body increase in number and cause a reaction of the body.
As a part of this there are two types of white blood cell called phagocytes. Select image for full size version. Infections can be caused by a wide range of.
These first lines are general defences and are not specific to fight against certain types of pathogen.
In the majority of fungi the wall lacks cellulose but contains a form of chitin known as the fungus. Infectious agent is the pathogen germ that causes diseases. The cycle of infection see figure 1 1 is like a chain consisting of six links. A way germs are moved to the.