Learn more about Legionnaires’ disease and how it’s spread
DEAR DR. ROACH: I’ve been hearing about Legionnaires’ disease. What is it? How’s it spread? Can it really be spread through windshield wipers? — D.G. ANSWER: Legionnaires’ disease is a pneumonia caused by Legionella pneumophilia. It was first described in 1976, when an outbreak killed 34 people at an American Legion convention in Philadelphia. Since then, much has been learned about this condition. Legionella live in soil and water, and water remains the most important source of infections in humans — not from drinking the water but through aerosolized water. ...