Infection
A disease producing organism is a pathogen. An invasion of the body by a pathogen is an infection. Although an infection is a generalized name for the body's response to any invasion by any pathogen.
pathogen
pathogen
Pathogen.
N/aA pathogen by definition is a disease causing organism
In medicine, the locus where a pathogen can enter would be any part of the body or surface that is moist. This includes the eyes, the nose and the mouth.
Antigen
It is called a "killer" T-cell
pathogen or germ
Infection allows the pathogen to enter human cells. Without infection plasmodium or any other pathogen can not enter the cells.
Pathogenic.
In the human body, the primary line of defence is the skin. The skin stops most of the microbes from entering the interiors of the body. If however, the pathogen is able to gain access into the body, the lymphatic system comes into play. The pathogen is eliminated before it begins to cause any more trouble.