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(Weil's Disease; Icterohemorrhagic Fever; Swineherd's Disease; Rice-Field Fever; Cane-Cutter Fever; Swamp Fever; Mud Fever; Hemorrhagic Jaundice; Stuttgart Disease; Canicola Fever)
by Diana Kohnle
Leptospirosis is a rare, but potentially serious, bacterial infection. It is most common in warm, tropical environments, and it spreads easily.
Leptospirosis is caused by specific bacteria resulting from contact with fresh water, wet or dampened soil, or vegetation that has been soiled by urine from an infected animal.
When contact is made with the contaminated material, the bacteria enter the body through open sores or wounds in the skin, or through mucous membranes. When the bacteria has entered the body, it flows into the bloodstream and throughout the body, causing infection.
Risk Factors TOP
The following people are at an increased risk of developing leptospirosis:
Symptoms typically appear about 10 days after infection and may include one or more of the following:
You will be asked about your symptoms and medical history. A physical exam will be done.
Your bodily fluids may be tested. This can be done with:
Talk with your doctor about the best treatment plan for you. Treatment options include antibiotics. In severe cases, hospitalization may be necessary.
To help reduce your chances of getting leptospirosis:
Centers for Disease Control and Prevention
World Health Organization
Ellis T, Imrie A, Katz AR, Effler PV. Underrecognition of leptospirosis during a dengue fever outbreak in Hawaii, 2001-2002. Vector Borne Zoonotic Dis. 2008;8(4):541-547.
Hartskeerl RA, Collares-Pereira M, Ellis WA. Emergence, control and re-emerging leptospirosis: dynamics of infection in the changing world. Clin Microbiol Infect. 2011;17(4):494-501.
Katz AR, Buchholz AE, Hinson K, Park SY, Effler PV. Leptospirosis in Hawaii, USA, 1999-2008. Emerg Infect Dis. 2011;17(2):221-226.
Leptospirosis. Centers for Disease Control and Prevention website. Available at:
...(Click grey area to select URL)
Updated November 18, 2014. Accessed June 11, 2015.
Leptospirosis. EBSCO DynaMed website. Available at: http://www.dynamed.com/topics/dmp~AN~T116239/Leptospirosis. Updated September 8, 2015. Accessed September 27, 2016..
Leptospirosis (Weil's disease). New York State Department of Health website. Available at:
...(Click grey area to select URL)
Updated October 2011. Accessed June 11, 2015.
Stern EJ, Galloway R, Shadomy SV, et al. Outbreak of leptospirosis among Adventure Race participants in Florida, 2005. Clin Infect Dis. 2010;50(6):843-849.
Last reviewed May 2016 by David L. Horn, MD
Last Updated: 6/19/2014
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