Glossary

AIDS (acquired immune deficiency syndrome)	Progressive impairment of the immune system by the human immunodeficiency virus (HIV); a diagnosis of AIDS is made on the basis of the presence of one or more specific opportunistic infections.



gout	A form of arthritis produced by a buildup of uric acid in the body, producing crystals that become lodged in the joints; the most commonly affected area is the big toe.



human immunodeficiency virus (HIV)	The virus that is implicated in the development of AIDS.



immunocompetence	The degree to which the immune system functions effectively.



osteoarthritis	A form of arthritis that results when the articular cartilage begins to crack or wear away because of overuse of a particular joint; may also result from injury or other causes; usually affects the weight-bearing joints and is common among athletes and the elderly.



rheumatoid arthritis	A crippling form of arthritis believed to result from an autoimmune process, usually attacking the small joints of the hands, feet, wrists, knees, ankles, and neck.

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