Legionnaires’ disease is a lung infection you can get from inhaling droplets of water from things like air conditioning or hot tubs. It’s uncommon but it can be very serious.
How you get Legionnaires’ disease
You can get Legionnaires’ disease if you breathe in tiny droplets of water containing bacteria that causes the infection.
It’s usually caught in places like hotels, hospitals or offices where the bacteria have got into the water supply. It’s less common to catch it at home.