Story Highlights. The average GPA at four-year colleges and universities has risen from 2.52 in the 1950s to 3.11 in 2006. Former Duke University professor found that at some colleges over 50% of the grades given are A's.
A. A. A. AIDS wasting syndrome occurs when you have AIDS and lose at least 10% of your body weight -- especially muscle. You may also have at least 30 days of diarrhea or extreme weakness and fever that's not related to an infection.
By Mayo Clinic Staff. Acquired immunodeficiency syndrome (AIDS) is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus (HIV). By damaging your immune system, HIV interferes with your body's ability to fight the organisms that cause disease. HIV is a sexually transmitted infection. It can also be spread by contact with infected blood or from mother to child during pregnancy, childbirth or breast-feeding. Without medication, it may take years before HIV weakens your immune system to the point that you have AIDS.