Learn 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. 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. Air-conditioning cooling towers and water systems are the usual sources of large outbreaks, such as the one occurring as I write this in New York City. There’s (almost) no ...