BO VEISLAND, MI&I / SCIENCE PHOTO LIBRARY BO VEISLAND, MI&I / SCIENCE PHOTO LIBRARY
AIDS virus. Illustration of a T-lymphocyte white blood cell (mauve) infected with HIV viruses (blue dots), amongst red blood cells. HIV (human immunodeficiency virus) is the cause of AIDS (acquired immune deficiency syndrome). The infected T-cell has a typical lumpy appearance with irregular surface protrusions. Small spherical virus particles (blue) seen on the surface are budding away from the cell membrane into the surrounding blood. The virus particles may go on to infect other T-lymphocytes. This viral infection causes death of T-lymphocyte immune cells and is the main reason for the destruction of the immune system in AIDS.
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