CHRIS BJORNBERG / SCIENCE PHOTO LIBRARY CHRIS BJORNBERG / SCIENCE PHOTO LIBRARY
AIDS virus particles. Coloured transmission electron micrograph (TEM) of AIDS virus particles (pink). AIDS (acquired immune deficiency syndrome) is a disease caused by HIV (human immunodeficiency virus). The virus infects T-4 white blood cells and forces them to produce more virus particles. These then erupt from the cell and go on to infect other cells. This process kills the white blood cells. As T-4 cells are important in the immune system, the immune response is severely damaged in AIDS. This makes patients vulnerable to otherwise harmless diseases. Magnification: x250,000 at 6x9cm size.
Model release not required. Property release not required.