Mayo Clinic Minute: What to know about Legionnaires' disease

Legionnaires' disease is a serious lung infection caused by Legionella bacteria. While most people exposed to the bacteria don't get sick, some people are at higher risk of infection and potentially serious illness.

Dr. Nipunie Rajapakse, a Mayo Clinic infectious disease expert, explains how this disease is spread and what you should know about Legionnaires' disease.
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