Legionellosis overview
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Legionellosis is an infectious disease caused by bacteria belonging to the genus Legionella.[1] Over 90% of legionellosis cases are caused by Legionella pneumophila, a ubiquitous aquatic organism that thrives in warm environments (25 to 45 °C with an optimum around 35 °C).
Legionellosis takes two distinct forms:Legionnaires' disease is the more severe form of the infection and produces pneumonia.[2] and Pontiac fever is caused by the same bacterium, but produces a milder respiratory illness without pneumonia which resembles acute influenza.[2]
Historical Perspective
Classification
Legionellosis may be classified into three types based upon clinical presentations or affected organ systems: pulmonary infection (Legionnaires' disease), extrapulmonary infection, and Pontiac fever.
Pathophysiology
Causes
Differentiating Legionellosis from other Diseases
Epidemiology and Demographics
Risk Factors
Natural History, Complications and Prognosis
Diagnosis
History and Symptoms
Physical Examination
Laboratory Findings
Chest X ray
CT
Other Diagnostic Studies
Treatment
Sources
- CDC Legionellosis [2]
References
- ↑ Ryan KJ, Ray CG (editors) (2004). Sherris Medical Microbiology (4th ed. ed.). McGraw Hill. ISBN 0838585299.
- ↑ 2.0 2.1 Winn WC Jr (1996). "Legionella". Baron's Medical Microbiology (Baron S et al, eds.) (4th ed. ed.). Univ of Texas Medical Branch. ISBN 0-9631172-1-1.