a. Absence of T cells
b. Proliferation of T cells
c. Proliferation of B cells
d. Absence of B cells
e. Absence of antigen-presenting cells (APCs)
Lymphoid System and Cellular Immunology 275
A
B
a. Absence of T cells
b. Proliferation of T cells
c. Proliferation of B cells
d. Absence of B cells
e. Absence of antigen-presenting cells (APCs)
Lymphoid System and Cellular Immunology 275
A
B