Study in Progress

Management of Legionella in Water Systems

The National Academies of Sciences, Engineering, and Medicine will undertake a project on the management of Legionella in water systems. Legionella is a bacterium found in drinking water distribution systems, premise plumbing, hot tubs, hot water heaters, cooling towers, fountains, and other building water systems. At high enough concentrations and when inhaled, Legionella can cause legionellosis, which includes Legionnaires' disease and Pontiac fever. An ad hoc committee of the Academies will review the state of science with respect to Legionella contamination of water systems and issue a report that will:

1) describe the microbial ecology of water supplies
2) identify primary sources and routes of human exposure to Legionella
3) evaluate effective strategies for controlling and preventing Legionella
4) review policies, codes, and guidelines that affect control and prevention of legionellosis
5) identify gaps in research and needs for additional research

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