Immune System & Allergies terms

The activity of the immune system against foreign substances (antigens).

The complex group of organs and cells that defends the body against infections and other diseases.

The failure of the immune system to respond to an antigen that previously caused an immune response.

A condition in which platelets (blood cells that cause blood clots to form) are destroyed by the immune system.

The condition of being protected against an infectious disease.

A technique used to cause an immune response that results in resistance to a specific disease, especially an infectious disease.

A test that uses the binding of antibodies to antigens to identify and measure certain substances.

The ability to produce a normal immune response.

Having the ability to produce a normal immune response.

Having a weakened immune system caused by certain diseases or treatments.

The inability of the body to produce an immune response.

A protein that acts as an antibody.

A test to check for blood in the stool.

A substance used to help boost the immune response to a vaccine so that less vaccine is needed.

The study of the body's immune system.

Change in the body's immune system, caused by agents that activate or suppress its function.

A process used to identify cells, based on the types of antigens or markers on the surface of the cell.

A substance that increases the ability of the immune system to fight infection and disease.

Suppression of the body's immune system and its ability to fight infections and other diseases.

Describes the ability to decrease the body's immune system responses.