Legionella is a bacterium that can cause serious pneumonia, known as legionellosis or Legionnaires' disease. The bacterium spreads through airborne water droplets, often from stagnant, warm water. This makes sources such as hot tubs, cooling towers, and vaporizers high-risk areas.
Legionella infection usually occurs through inhalation of contaminated water vapor, for example, while showering or using pressure washers. Inhaling air near cooling towers and fountains can also pose a risk.
The symptoms of legionellosis initially resemble those of the flu. They include fever, cough, shortness of breath, and muscle aches. In severe cases, it can lead to pneumonia, which can be life-threatening.
How to prevent?
Prevention is essential. Ensure water pipes are regularly inspected and water samples are taken. In homes, it's wise to thoroughly flush pipes after extended periods of inactivity, such as after a vacation. Keep the water temperature in boilers and pipes above 60 degrees Celsius to inhibit the growth of Legionella.
In addition, it is important to handle nebulizers and devices that spray water hygienically.
