Legionnaires’ (LEE-juh-nares) disease is caused by a type of bacterium called Legionella (LEE-juh-nell-a). The bacterium is named after a 1976 outbreak, during which some people who went to a Philadelphia convention of the American Legion suffered from a new type of pneumonia (lung infection) that became known as Legionnaires’ disease. A milder infection, also caused by Legionella, is called Pontiac fever. The term “legionellosis” (LEE-juh-nuh-low-sis) may be used to refer to either Legionnaires’ disease or Pontiac fever.
CDC Seeks Comments on Water Management Programs
CDC is seeking information on effective methods for achieving implementation of water management programs intended to reduce Legionella growth and transmission in buildings at increased risk. Formal comments can be submitted until October 17, 2017.
Toolkit to Develop a Legionella Water Management Program
Get practical guidance on how to implement industry standards by identifying areas or devices in buildings where Legionella might grow or spread to people so that risk can be reduced through effective water management.
June 2017 Vital Signs: Use water management programs in health care facilities to prevent Legionnaires’ disease…
Environmental Investigation Videos
CDC has developed six instructional videos on various environmental aspects of legionellosis outbreak investigations.
The Environmental Legionella Isolation Techniques Evaluation (ELITE) Program was created as a way for laboratories to test their Legionella isolation techniques against standardized samples.
- Page last reviewed: June 6, 2016
- Page last updated: October 2, 2017
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