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.
HIV infection; Infection â HIV; Human immunodeficiency virus; Acquired immune deficiency syndrome. Human immunodeficiency virus (HIV) causes HIV infection and AIDS. The virus attacks the immune system. As the immune system weakens, the body is vulnerable to life-threatening infections and cancers. Once a person has the virus, it stays inside the body for life.