AIDS wasting syndrome: The involuntary weight loss of 10% of baseline body weight plus either chronic diarrhea (two loose stools per day for more than 30 days) or chronic weakness and documented fever (for 30 days or more, intermittent or constant) in the absence of a concurrent illness or condition other than HIV infection that would explain the findings.
Quick GuideHIV AIDS Facts: Symptoms and Treatments
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Last Editorial Review: 6/14/2012