- DBMD - Legionellosis - Factsheet with cause, symptoms, treatment, and prevention.
- eMedicine - Legionella Infection - Article by Mobeen Rathore, MD
- eMedicine - Legionellosis - Article by Lynn E Sullivan, MD.
- eMedicine - Legionnaires Disease - Article by Frank Smeeks, MD, FAAEM.
- Legionellosis Facts - Includes cause, symptoms, diagnosis, complications, treatment, and prevention.
- Legionnaires' Disease - Caused by Legionella bacteria. Includes outbreaks and clinical information.
- MedlinePlus Medical Encyclopedia: Legionnaire's disease - Features cause, symptoms, tests, treatment, prognosis, and prevention.
- MedlinePlus: Legionnaires' Disease - Directory of factsheets, articles, and news.
- Medmicro: Legionella - Scientific and medical information on the bacteria and the disease it causes.
- OSHA Technical Manual - Legionnaires' Disease - Information to assist industrial hygienists in the assessment of work sites for potential Legionnaires' disease. Provides information on disease recognition, investigation procedures to identify probable water sources, and control strategies.
- Postgraduate Medicine: Legionnaires' Disease and Pneumonia - Research article on the disease.
- The European Working Group for Legionella Infections - Includes disease information, surveillance information, reports, and links.
- The Merck Manual: Pneumonia of Legionnaires' Disease - Includes signs and symptoms, diagnosis, prognosis, and treatment.
- Yahoo! Groups : legionnaires_disease - Discussions on Legionnaires' disease.