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01/10/2012

Decorative Fountain Linked to Legionnaires' Disease Outbreak

 
Decorative Fountain Linked to Legionnaire’s Disease Outbreak

A 2010 outbreak of Legionnaires' disease in Wisconsin has been linked to a decorative fountain in a hospital lobby, according to a study published in Infection Control and Hospital Epidemiology, the journal of the Society for Healthcare Epidemiology of America. The investigation and subsequent conclusions have had an impact on many Wisconsin healthcare facilities changing their policies and/or procedures regarding decorative fountains, with some opting to shut down or remove them completely.

The outbreak was originally detected among eight people in southeast Wisconsin, with public health officials working closely with hospital staff to determine the source of the disease.  Legionnaires' disease is a severe and potentially life-threatening form of pneumonia caused by the bacteria Legionella and is spread through inhalation contact with contaminated water sources.

Through detailed interviews with patients, officials identified one hospital as the site of the contamination. Subsequent environmental testing within the hospital detected notable amounts of Legionella in samples collected from the "water wall" decorative fountain located in the hospital's main lobby.

The investigation revealed that all eight patients had spent time in the main lobby where the fountain is located. This, along with the proximity of each patient's onset of illness and the degree of Legionella contamination in the fountain strongly support the conclusion that the decorative fountain was the source of the outbreak. Hospital officials quickly shut down the fountain when it was first suspected as a source, and notified staff and approximately 4,000 potentially exposed patients and visitors. Prior to the investigation, the decorative fountain underwent routine cleaning and maintenance.

"Since our investigation, the Wisconsin Division of Public Health has developed interim guidelines advising healthcare facilities with decorative fountains to establish strict maintenance procedures and conduct periodic bacteriologic monitoring for Legionella," says Thomas E. Haupt, MS, an epidemiologist with the Wisconsin Division of Public Health and the study's lead author. "The guidelines stress that until additional data are available that demonstrate effective maintenance procedures for eliminating the risk of Legionella transmission from indoor decorative water fountains in healthcare settings, water fountains of any type should be considered at risk of becoming contaminated with Legionella bacteria."

Since this investigation, many healthcare facilities in Wisconsin shut down or removed decorative fountains in their facilities, while others enhanced their regular testing protocols to reduce the risk of Legionnaires' disease, the researchers report. Healthcare facility construction guidelines published after this outbreak stipulate that, "fountains and other open decorative water features may represent a reservoir for opportunistic human pathogens; thus they are not recommended for installation within any enclosed spaces in healthcare facilities."

 

 


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Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.


 
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