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ID#:7925
Description:This 2005 photograph shows numbers of Legionella sp. colonies, which had been cultivated on an agar cultured plate, and illuminated using ultraviolet light.
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, causes over 90% of Legionnaires' disease (LD) in the United States. LD is the more severe form of legionellosis, and is characterized by pneumonia, commencing 2 - 10 days after exposure. Pontiac fever represents an acute-onset, manifesting as a flu-like, non-pneumonic illness, and occurs within a few hours, to two days after exposure.
High Resolution: Click here for hi-resolution image (22.31 MB)
Content Providers(s):CDC
Creation Date:2005
Photo Credit:James Gathany
Links:CDC – Div. of Bacterial and Mycotic Diseases: Legionellosis: Legionnaire's Disease (LD) and Pontiac Fever
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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