________ develop(s)when the immune response mistakenly targets normal body cells and tissues.
E)Immune complex disorders
Inappropriate or excessive immune responses to antigens are defined as
B)characteristics of AIDS.
D)characteristics of HIV infection.
E)common in the elderly.
________ is the ability to produce a normal immune response upon exposure to an antigen.
The human immunodeficiency virus (HIV)that causes the disease known as AIDS selectively infects ________, which leads to clinical problems.
C)cytotoxic T cells
D)helper T cells
E)suppressor T cells