Legionella: 10 Quick Facts
Legionellosis is a term for any disease caused by Legionella bacteria.
It is a common bacteria found in natural and man-made water systems.
Although Legionella bacteria are found everywhere, they flourish in potable and nonpotable water systems.
It is under-diagnosed, and not as rare as you think.
Cooling towers, evaporative condensers, humidifiers, domestic/potable hot water systems, fountains, spas, and respiratory equipment are all systems that can harbor and create an active growing environment and support the spread of the Legionella.
Legionella cannot be passed between people. It is only transmitted to humans through airborne particles, i.e., inhaling or aspirating contaminated droplets from water systems that have not been properly cleaned and disinfected.
Each year, an estimated 10,000 to 18,000 people are infected with the Legionella bacteria in the United States.
Up to 30% of these cases prove to be fatal.
Legionnaires’ disease can cause cough, high fever, pneumonia, and death. It can be treated effectively with antibiotics.
It is preventable.
