AIDS dementia complex: A brain disorder in people with severe AIDS, causing loss of thinking capacity and affecting the ability to function. AIDS dementia complex is considered an AIDS-defining illness'that is, one of the serious illnesses that occurs in HIV-positive individuals warranting an AIDS diagnosis, according to the definition of AIDS by the Centers for Disease Control and Prevention (CDC).
Quick GuideHIV AIDS Facts: Symptoms and Treatments
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Last Editorial Review: 6/9/2016