It’s a lung infection caused by Legionella bacteria, often spread through contaminated water droplets (like from showers or cooling systems).
Keep cold water below 20°C (68°F) and hot water above 50°C (122°F)—Legionella thrives in warm water!
Elderly, smokers, and those with weak immune systems are at higher risk. Make sure environments they visit are safe and maintained.
Check your home water heaters, humidifiers, and filters. Even small systems can grow Legionella if not cleaned properly.