False-colour scanning electron micrograph (SEM) of a colony of Legionella pneumophila,the bacteria causing Legionnaire's disease,a severe & often fatal form of lobar pneumonia. The weakly-staining Gram-negative bacterium is elongated with a single flagellum for motility. The disease obtained its name after an outbreak at an American Legion convention in Pennsylvania in 1976. L. pneumophila is known to be distributed in water; water-tanks,shower heads,and cooling tanks for air- conditioning systems in large buildings are favoured environments. Infection is likely to occur through inhalation of the bacteria in water droplets. Mag: x1,000 35mm,x2,000 at 6x7cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / CNRI |
Taille de l’image : | 5231 px × 4251 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |