What is Legionella? – Legionella is a genus of pathogenic Gram-negative bacteria that includes the species L. pneumophila, causing legionellosis[3] (all illnesses caused by Legionella) including a pneumonia-type illness called Legionnaires’ disease and a mild flu-like illness called Pontiac fever.  Is Legionella exposure dangerous? Yes, exposure to Legionella can be deadly: https://www.usnews.com/news/us/articles/2020-04-24/buildings-closed-by-coronavirus-face-another-risk-legionnaires-disease Symptoms of Legionella […]