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 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Dowsett, A.B. |
Taille de l’image : | 2640 px × 3543 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |