nlm.nih.gov Legionnaires’ disease Legionnaires disease Legionnaires disease New York State Department of Health Legionnaires’ disease Legionnaires’ disease Legionnaire's disease Those most at risk include Legionnaire's disease Legionnaire's disease Legionaire’s Disease National Institutes of Health nlm.nih.gov www.nlm.nih.gov Legionnaires’ disease National Institutes of Health Legionnaires disease Legionnaires’ disease Legionnaire’s Disease Legionnaires' Disease Legionnaires' Disease nlm.nih.gov Legionaire’s Diseasec Legionnaires’ disease Legionnaires’ disease Legionnaire's disease Legionnaire's disease Legionnaire's disease Legionnaire's disease Legionnaire's disease MedlinePlus: Legionnaires' Disease Legionnaires' Disease Legionnaires’ disease