Possible Pathways to exposure
Who’s At Risk
Whether it’s a single case or a larger outbreak, it is important to thoroughly investigate each instance of Legionnaires’ disease to reduce the risk of further cases. The CDC offers comprehensive investigation protocols to accurately confirm cases and identify the source of exposure so the affected area of a water system can be treated. Such protocols should be used in their entirety to accurately identify the cause and prevent future cases. Find information here and here.
|Legionnaires’ disease most often occurs in large outbreaks.||}||Only 4% of Legionnaires’ disease cases are part of known outbreaks. There are approximately 5,000 cases per year in the United States.|
|The primary cause of Legionnaires’ disease is cooling towers.||}||Peer-reviewed studies published in the New England Journal of Medicine, The Lancet: Infectious Diseases, and many other publications have found the drinking water supply to be the primary source of the bacteria.|
|You can’t get Legionnaires’ disease from a shower head.||}||Bacteria can grow in the plumbing and in the shower head, which breaks up the water into a fine mist which can easily be inhaled allowing bacteria to travel directly to the lungs.|