DAVID M. PHILLIPS / SCIENCE PHOTO LIBRARY DAVID M. PHILLIPS / SCIENCE PHOTO LIBRARY
Colour enhanced transmission electron microscope of HIV particles. The virus infects T-4 white blood cells, making them produce more virus particles. These erupt from the cell and infect other cells. The 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 normally harmless diseases. Magnification 210,000x at 8x10in.
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