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Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

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Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

acquired immunodeficiency syndrome

(uh-KWY-erd IH-myoo-noh-deh-FIH-shun-see SIN-drome)
A disease caused by the human immunodeficiency virus (HIV). People with acquired immunodeficiency syndrome are at an increased risk for developing certain cancers and for infections that usually occur only in individuals with a weak immune system. Also called AIDS.
Search NCI's Dictionary of Cancer Terms