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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.
People with Pontiac fever, a much milder illness caused by the same bacterium, experience fever and muscle aches without pneumonia. They generally recover in 2–5 days without treatment. For Pontiac fever, the time between exposure and symptoms is generally a few hours to two days. [medical citation needed]
It was noted that they suddenly had a high fever, coughs and hallucinations. First they were transferred to the infectious diseases ward for some hours with a suspicion of pneumonia, later they were transferred to intensive care. Tests showed that both patients had legionellosis. The disease proved to be the cause of death of one of the ...
Legionella feeleii is a Gram-negative, rod-shaped bacterium from the genus Legionella which was isolated from an automobile plant and which was held responsible for causing Pontiac fever in 317 workers. [3] [4] The organism did not grow on blood agar, required L-cysteine, and showed significant quantities of branched-chain fatty acids.
Legionella is a genus of gram-negative bacteria that can be seen using a silver stain or grown in a special media that contains cysteine, an amino acid.It is known to cause 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]
An outbreak of what was dubbed Pontiac fever occurred in a health department in Pontiac, Michigan in July 1967. No one died. [19] Although caused by the same bacterium, Pontiac fever is a milder ailment than Legionnaires' disease. Pneumonia is absent in those with Pontiac fever. [15] [16]
For example, Q fever is caused by Coxiella burnetii and Legionella pneumophila causes Legionnaires' disease [3] [4] and Pontiac fever. [5] [6] [7]
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