What Is Legionnaires' Disease?

  • 6 years ago
Legionnaires' disease is a type of pneumonia caused by exposure to Legionella bacteria. These bacteria thrive in warm water and can grow and spread in water systems like showerheads, air-conditioning cooling towers and hot water tanks, according to the CDC. The illness can happen any time of year but is most common during the summer and early fall.Music Credit: Audioblocks 'Medical Mystery'