What is the prognosis of Legionnaires disease?

Updated: Mar 11, 2021
  • Author: Chinelo N Animalu, MD, MPH; Chief Editor: Michael Stuart Bronze, MD  more...
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Recovery is variable in LD; some patients experience rapid improvement, while others have a much more protracted course despite treatment. The mortality rate approaches 50% with nosocomial infections.

Progressive respiratory failure is the most common cause of death in patients with Legionella pneumonia. However, the mortality rate depends on the comorbid conditions of the patient, as well as on the choice and timeliness of antibiotics administration. The site of acquisition (eg, nosocomial, community-acquired) may also affect the outcome.

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