Immunodeficiency
The inability to form a normal immune response. Immunodeficiency can be due to a genetic disease or it can be acquired, as in AIDS.
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- Immunodeficient
Lacking immunity, and so being susceptible to infection. Immunodeficient is the opposite of immunocompetent.
- Immunogenetics
The genetics (pattern of inheritance) of the immune response. For example, immunogenetics includes the study of Rh, ABO, and other blood groups.
- Immunoglobulin
A protein produced by plasma cells and lymphocytes and characteristic of these types of cells. Immunoglobulins play an essential role in the body’s immune system. They attach to foreign substances, such as bacteria, and assist in destroying them. Immunoglobulin is abbreviated Ig. The classes of immunoglobulins are termed immunoglobulin A (IgA), immunoglobulin G (IgG), immunoglobulin […]
- Immunoglobulin A
A major class of immunoglobulins (antibodies) found in serum and external body secretions such as saliva, tears, and sweat, as well as in the gastrointestinal, respiratory, and genitourinary tracts. Abbreviated IgA. About 10 percent to 15 percent of the antibodies present in the body are IgA antibodies.
- Immunoglobulin D
A class of immunoglobulins found in small amounts in the body, whose exact function is not clear.