What are the signs and symptoms of extrapulmonary legionellosis?

Updated: Nov 13, 2018
  • Author: Mobeen H Rathore, MD, CPE, FAAP, FIDSA; Chief Editor: Russell W Steele, MD  more...
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Extrapulmonary legionellosis is rare; the most common site of extrapulmonary infection in adults is the heart. In children, extrapulmonary sites may include the liver, spleen, brain, and lymph nodes. [25] Manifestations of extrapulmonary legionellosis may include the following:

Pontiac fever is an influenzalike illness, typically with an abrupt onset. The incubation period is 24-48 hours. Prominent symptoms include fever, malaise, myalgia, cough, and headache. Pontiac fever tends to occur in outbreaks, and the infection rate is greater than 90%. The disease is self-limiting, persisting for approximately 1 week.

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