During the summer period reports of legionella contamination in pools or air conditioning systems in hotels regularly come across. This often raises questions about the severity of the situation. Is there any reason for concern? Let's look at what Legionella is exactly and how it spreads.
Legionella is a bacteria that occurs naturally in the soil and water, but is usually in small numbers and therefore not dangerous. However, under specific conditions, such as water temperatures between 25 and 55 °C, the bacteria can quickly multiply, which can occur in hot water circuits that often have a temperature around 40°C. Standstill water in pipes is an additional risk because this can stimulate the growth of the bacteria.
Legionella infection occurs by breathing in small water drops (aerosols) containing the bacteria. This can occur in showers, jacuzzis, air conditioning systems and cooling towers of buildings. Especially people with reduced resistance, such as elderly or chronic disease suffer from an increased risk of serious complications.
The symptoms of legionella infection range from mild flu-like symptoms to severe pneumonia, known as the veteran disease. Fortunately, the disease is well treatable with antibiotics, especially if detected in time. However, recovery may take a long time, especially in vulnerable groups.
Fortunately, there are measures to prevent legionella contamination. Swimming pools and other public facilities are subject to strict regulations to minimize the spread of the bacteria. At home you can also take measures such as maintaining the right water temperatures and regular maintenance of water pipes.
In short, although legionella infections can have serious consequences, there is no need to panic. By raising awareness, preventive measures and timely treatment we can minimise the risks.
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