Legionella bacteria. Coloured transmission elec- tron micrograph (TEM) of a group of Legionella pneumophila bacteria,cause of Legionnaires' disease. The bacteria are seen sectioned. They are rod-shaped Gram-negative bacilli. L. pneumophila was first identified as an agent of disease after a mysterious outbreak of pneumonia caused 29 deaths at an American Legion convention in 1976. The bacteria was found living in water- tanks,showerheads and air-conditioning systems. The disease,also called legionellosis,causes fatal pneumonic lung damage in the elderly and unfit. Magnification: x5,000 at 6x7cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / DR LINDA STANNARD, UCT |
Taille de l’image : | 3088 px × 2303 px |
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