In immunodeficiency diseases,

A) the immune system fails to distinguish between self-antigens and foreign antigens.
B) inadequate B and/or T cell formation may occur.
C) IgE mediates a localized reaction.
D) serum sickness results.
E) immune surveillance occurs.

Immunodeficiency Diseases

Disorders where the immune system's ability to fight infectious disease and cancer is compromised or entirely absent.

B and/ T Cell Formation

The development and differentiation of B cells and T cells, which are critical components of the adaptive immune system.

Self-antigens

Molecules produced by an organism's own body that, under normal circumstances, do not trigger an immune response.