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Pontiac fever is known to have a short incubation period of 1 to 3 days. No fatalities have been reported and cases resolve spontaneously without treatment. [8] It is often not reported. [9] Age, gender, and smoking do not seem to be risk factors. Pontiac fever seems to affect young people in the age medians of 29 to 32.
People of any age may develop Legionnaires' disease, but the illness most often affects middle-aged and older people, particularly those who smoke cigarettes or have chronic lung disease. Immunocompromised people are also at higher risk. Pontiac fever most commonly occurs in those who are otherwise healthy. [citation needed]
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]
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] An outbreak of pneumonia in July–August 1965, at St. Elizabeths Hospital in Washington, DC, which killed 16 persons out of 78 infected was later determined to be Legionnaires' disease ...
This is a list of Legionnaires' disease outbreaks; Legionnaire's is a potentially fatal infectious disease caused by gram negative, aerobic bacteria belonging to the genus Legionella. [ 1 ] [ 2 ] The first reported outbreak was in Philadelphia, Pennsylvania in 1976 during a Legionnaires Convention at the Bellevue-Stratford Hotel .
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Lassa virus: Lassa fever: Laboratory testing Supportive No Legionella pneumophila: Legionellosis (Legionnaires' disease) Urinary antigen test, sputum culture: Effective antibiotics include most macrolides, tetracyclines, ketolides, and quinolones. No Legionella pneumophila: Pontiac fever: No Leishmania species Leishmaniasis
About 60% of those infected with the virus will experience symptoms including fever, sensitivity to light, dizziness, nausea and vomiting, severe headache, joint and muscle pain, chills or skin rash.