BECTER / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY BECTER / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
HIV infected T-cell. Coloured Scanning Electron Micrograph (SEM) of a T-lymphocyte blood cell, infected with Human Immunodeficiency virus (HIV). The cell surface contains many projections; in the area coloured red can be seen viruses (pink dots) budding from the cell. HIV viruses are believed to cause AIDS (Acquired Immune Deficiency Syndrome). HIV infects the T-cell, a cell involved in the body's immune response, and instructs the cell to produce more HIV viruses. By this process of infection the T-cell is killed. Depletion of T-cells in the blood results in the destruction of a person's immune system in the disease of AIDS.
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