Legionnaires' disease (LEE-juh-nares) is caused by a type of bacterium called Legionella (LEE-juh-nell-a). The bacterium is named after a 1976 outbreak, when many people who went to a Philadelphia convention of the American Legion suffered from this disease, a type of pneumonia (lung infection). A milder infection, also caused by Legionella bacteria, is called Pontiac fever. The term "legionellosis" (LEE-juh-nuh-low-sis) may be used to refer to either Legionnaires' disease or Pontiac fever.
The Illinois Department of Veterans’ Affairs and the Illinois Department of Public Health (IDPH) have confirmed an outbreak of Legionnaires’ disease in residents at the Illinois Veterans’ Home - Quincy. See IDPH’s news release and Legionnaires’ disease information.
The California Department of Corrections and Rehabilitation (CDCR), along with the Marin County Public Health Department and California Correctional Health Care Services, are continuing the investigation of the source of Legionnaires’ disease at San Quentin State Prison. See CDCR’s Legionnaires’ disease case update.
Top 10 things every clinician needs to know about legionellosis including diagnosing, testing, obtaining a specimen for culture, treating, and reporting cases.
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: February 5, 2013
- Page last updated: September 1, 2015
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