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Legionella. Legionella is a genus of pathogenic gram-negative bacteria that includes the species L. pneumophila, causing legionellosis [3] (all illnesses caused by Legionella) including a pneumonia-type illness called Legionnaires' disease and a mild flu-like illness called Pontiac fever. [3]
Legionnaires' disease is a form of atypical pneumonia caused by any species of Legionella bacteria, [3] quite often Legionella pneumophila. Signs and symptoms include cough, shortness of breath, high fever, muscle pains, and headaches. [2] Nausea, vomiting, and diarrhea may also occur. [1] This often begins 2–10 days after exposure.
Legionella pneumophila is an aerobic, pleomorphic, flagellated, non-spore-forming, Gram-negative bacterium of the genus Legionella. [ 1][ 2] L. pneumophila is the primary human pathogen in the genus Legionella. In nature, L. pneumophila infects soil amoebae of the genus Acanthamoeba and freshwater amoeboflagellates of the genus Naegleria. [ 3]
The Southern Nevada Health District is investigating cases of Legionnaires’ disease among guests of two Las Vegas hotels. ... Strow said testing did not detect Legionella in the guest’s room ...
Pontiac fever. Pontiac fever is an acute, nonfatal respiratory disease caused by various species of Gram-negative bacteria in the genus Legionella. It causes a mild upper respiratory infection that resembles acute influenza. Pontiac fever resolves spontaneously and often goes undiagnosed.
What is Legionnaires' disease? Legionnaires’ disease is a serious type of pneumonia caused by Legionella bacteria, according to the Centers for Disease Control and Prevention.
The hotel closed in November 1976, four months after the outbreak. The 1976 Legionnaires' disease outbreak, occurring in the late summer in Philadelphia, Pennsylvania, United States was the first occasion in which a cluster of a particular type of pneumonia cases were determined to be caused by the Legionella pneumophila bacteria.
unknown. The first outbreak in Hotel Rio Park occurred in 1973, four tourists died, but at the time it was not recognized as Legionnaires' disease until a subsequent outbreak in the same hotel in 1977. [6] 1976. Philadelphia, Pennsylvania, United States. 1976 Philadelphia Legionnaires' disease outbreak. Air conditioning.
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