Coloured transmission electron micrograph (TEM) of a human lung macrophage which has engulfed the bacteria Legionella pneumophila. Macrophages are scavenger cells found at sites of infection; they remove bacteria or other foreign bodies from blood or tissue. At centre is the dumbbell-shaped nucleus (orange & green) of the macrophage. At upper left,in a cell vacuole (dark blue),are the L. pneumophila bacteria (red). As the agent of Legionnaire's disease,these bacteria cause pneumonia and other respiratory illness. Human infection occurs through contaminated water of air-conditioning or shower systems. Magnification: x5600 at 6x6cm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Dowsett, A.B. |
Bildgröße: | 2640 px × 3543 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |