LEGIONELLA PNEUMOPHILA
Legionella pneumophila (colorized TEM, approximately x 129 500), cultured in an embryonated hens egg. Legionella pneumophila is a Gram-negative bacillus, strict aerobic. This is an ubiquitous aquatic and facultative intracellular bacterium, responsible for legionaire disease (legionellosis) and Pontiac fever. Legionella pneumophila > Legionella > Legionellaceae > Legionellales > Proteobacteria > Bacterium. This thin section transmission electron micrograph (TEM) depicted a Gram-negative Legionella pneumophila bacterium, which was cultured in an embryonated hens egg; Magnified approximately 119,500x. At least 46 Legionella spp., and 70 serogroups have been identified. L. pneumophila, an ubiquitous aquatic bacterial organism, which thrives in warm environments, primarily at temperatures ranging from 32°- 45°C, and causes over 90% of Legionnaires' disease, (LD), in the United States. Legionnaires' disease, (LD), is the more severe form of legionellosis and is characterized by pneumonia, commencing 2-10 days after exposure. Pontiac fever is an acute-onset, flu-like, non-pneumonic illness, occuring within a few hours to two days of exposure.
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Photo credit: © CDC / BSIP / Alamy / Afripics
License: Licensed
Model Released: No
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