Page 69 - 78 glossary of hivaids-related terms_opt

Immunodeficiency
Inability to produce normal amounts of antibodies, immune cells,
or both.

Immunogenicity
The ability of an antigen or vaccine to stimulate an immune
response.
See Also: Antigen
Vaccine

Immunoglobulin (IG)
See: Antibody
I
Immunologic
Related to the immune system, which defends the body against
infection and disease.

Immunologic Failure
Occurs when an HIV-infected individual’s CD4 count decreases
below the baseline count or does not increase above the baseline
count within the first year of anti-HIV treatment. People who
experience virologic failure but do not switch to an effective drug
regimen usually progress to immunologic failure within about 3
years. Immunologic failure may be followed by clinical failure.
See Also: Baseline
Virologic Failure
Clinical Failure

Immunomodulator
A natural or man-made substance that can modify the functioning
of the immune system.

Immunomodulatory Therapy
See: Immunomodulator

HIV/AIDS Glossary 67