Course: Immunity and Immunization

CONCEPT OF IMMUNITY 

1.1 DEFINE IMMUNITY 

DEFINITION: - This is the ability possessed by the body (host) to resist infection of a specific disease, foreign tissue, foreign non-toxic substances and other antigens.

DEFINITION: - is an intrinsic or acquired state of resistance to an infectious agent.

DEFINITION: - is the degree of resistance a host (body) possesses as a result of its exposure to the antigen.

DEFINITION: - is a condition of being able to resist a particular disease especially through preventing the development of a pathogenic micro – organism or by counteracting the effects of its toxins or products.

DEFINITION: - is the ability of the body to resist infections.

DEFINITION: - is the resistance usually associated with the antibodies or immune cells which have inhibitory effects on a specific infectious agent or its toxin that causes a particular infectious disease