Substance that the body recognizes as foreign;
evokes an immune response

protection

Acquired immunodeficiency syndrome
(AIDS)

Acquired immunodeficiency syndrome

condition of cells; slight increase in numbers

Use of immune cells, antibodies, or vaccines
to treat or prevent disease

poison

Allergy: abnormal sensitivity
acquired by exposure to antigen

Human immunodeficiency virus

swelling

Large phagocyte found in lymph nodes and
other tissues of the body

between

Lymphoma: malignant tumor of lymph nodes
and lymph tissue

Cytomegalovirus

enlargement

Proteins secreted by T cells and other cells to
aid and regulate the immune response

again, anew

malignant tumor of bone
marrow cells

Enzyme-linked immunosorbent assay

disease; emotion

Proteins secreted by cytotoxic
T cells to aid in antigen destruction

lymph node

tumor of the thymus gland

Highly active antiretroviral therapy

resembling