HIV viruses. Coloured Transmission Electron Micro- graph (TEM) of Human Immunodeficiency Viruses (HIV) emerging from a T-lymphocyte blood cell. HIV is the virus that causes AIDS (Acquired Immune Deficiency Syndrome). The viruses are green; the T-cell is red at lower frame. HIV causes AIDS by infecting T-cells,a type of white blood cell that plays a vital role in the body's immune system. Like other viruses,HIV reproduces by planting special genes in the DNA of the host cell. These subvert the cell's function,turning it into a virus-producing machine. Because HIV infects T- cells it disarms the body's immune system,making the victim defenceless against infection | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Camazine, Scott / CDC |
Taille de l’image : | 4405 px × 3222 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|