ELIZABETH FISCHER AND KIM HASENKRUG / NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY ELIZABETH FISCHER AND KIM HASENKRUG / NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY
Mouse leukaemia virus. Coloured scanning electron micrograph (SEM) of mouse leukaemia virus particles (yellow) budding out of a T-lymphocyte (or T-cell, purple). This virus infects white blood cells, the cells of the body's immune system, which include T-lymphocytes. Infection disrupts the host cell's DNA, often causing the cancer leukaemia, the uncontrollable proliferation of white blood cells.
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