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Prevention of
Hospital-Acquired Legionellosis

More hospitals are facing the dilemma of Legionella outbreaks as they discover the drinking water is the source. This article provides an update of the use of PCR detection for water, the use of CFU/ml vs distal site positivity as an indicator of risk, risk assessment, neurologic complications in patients, and new laboratory tests for patient management
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Legionnaires' Disease

Legionnaires' disease is a severe, often lethal, form of pneumonia. It's caused by the bacterium Legionella pneumophila found in both potable and nonpotable water systems. Each year, an estimated 56,000 to 113,000 people are infected with the Legionella bacteria in the United States.  See What's New for the latest on Legionnaires' disease.

 

Recent FAQs

  • General Public
  • Engineers
  • Water Treaters
  • Physicans
  • Infection Control

Drinking from a water fountain in a hospital with Legionella in the water?

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Can Legionnaires' disease be contracted from decorative fountains?

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My home water is infected with Legionella.

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Growth temperature of Legionella for hot water tanks?

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What is the upper limit of Legionella for hospital water distribution systems?

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Monitoring of copper-silver in hospital water systems?

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Microbiologically influenced corrosion (MIC) and Legionella?

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Inability of chlorine dioxide to reduce Legionella counts to zero?

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Presence of multiple Legionella species in hospital water?

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What is the "infective dose" for contracting Legionnaires' disease?

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Chlorine and other oxidizing biocides as treatments for cooling towers?

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Maintenance of hot tubs?

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Persistence of positivity for the Legionella urinary antigen?

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Which antibiotics are effective against Legionnaires'?

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Is there an antibody test that can be used to diagnose pneumonia many months ago?

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Legionella is in the water supply of our hospital?

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CFU/mL as a guide to remedial action?

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Monochloramine in the water supply and the need for hospital monitoring for Legionella?

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Is routine environmental surveillance the standard of practice?

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Frequency of Legionella monitoring in hospital water?

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In Our Opinion

Legionnaires' Disease in Children

by Yael Shachor-Meyouhas

Legionella has not been a prominent pathogen in children with pneumonia. The discovery of Legionnaires' disease as a community-acquired pneumonia in immunocompetent (healthy) children occurred fortuitously.


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Recent Publications

Prevention of Hospital-Acquired Legionellosis
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Legionella: macrolides or quinolones?
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Environmental culturing for Legionella: Can we build a better mouse trap?
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