Nov 17, 2015

HIV is not AIDS

HIVs (green) bud onto the surface of a lymphcyte
  • HIV -Human Immunodeficiency Virus- is a virus. It causes HIV infection and AIDS.
  • AIDS - Acquired Immunodeficiency Syndrome - is a condition in human body in which the immune system breaks down hence it is easier for other infections and cancers to pervade.
  • HIV buds onto the surface of lymphocyte (one type of white blood cells ie, T-cell, B-cell (boss of T-cell :D), Natural Killer. HIV attacks T-type of lymphocyte). Lymphocytes kill the unwanted visitors such as virus/bacteria in human body. Once affected by HIV the count of lymphocytes decrease and body becomes vulnerable to other viruses/bacteria.
    • Lower count lymphocyte compared to white blood cell is an indication of HIV invasion.
    • Higher count of lymphocyte is an indication of viral infection and too high is an indication of cancer because all the lymphocytes go toward fighting the infection/cancer cells.
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    •                                      A lymphocyte surrounded by red blood cells








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