MedicineNet: Leptospirosis
- Doctor produced consumer health information on leptospirosis, including symptoms, diagnosis and treatment.
- http://www.medicinenet.com/leptospirosis/article.htm

The Weil's Disease Information Center
- Advice for the caving and medical community on leptospira including symptoms and treatment.
- http://www.leptospirosis.org/

Medmicro: Leptospira
- Scientific and medical information about the spirochete and the diseases it causes.
- http://gsbs.utmb.edu/microbook/ch035.htm

WHO: Water-related Diseases - Leptospirosis
- Factsheet with cause, distribution, scope of the problem, and prevention efforts.
- http://www.who.int/water_sanitation_health/diseases/leptospirosis/en/

The Merck Manual: Leptospirosis
- Short factsheet on the disease.
- http://www.merck.com/mrkshared/mmanual_home2/sec17/ch190/ch190j.jsp

MedlinePlus Medical Encyclopedia: Leptospirosis
- Features cause, symptoms, treatment, diagnosis, prevention, risk factors, and complications.
- http://www.nlm.nih.gov/medlineplus/ency/article/001376.htm

Leptospirosis in Humans
- Includes cause, people at risk, symptoms, and complications.
- http://www.vetmed.wisc.edu/pbs/zoonoses/Leptospira/leptohuman.html

Leptospirosis Facts
- Features cause, symtptoms, treatment, and prevention.
- http://www.astdhpphe.org/infect/Lepto.html

Health Protection Agency: Leptospirosis
- Includes cause, symptoms, diagnosis, and prevention.
- http://www.hpa.org.uk/infections/topics_az/zoonoses/leptospirosis/gen_info.htm

eMedicine - Leptospirosis
- Article by Patrick W Hickey, MD.
- http://www.emedicine.com/ped/topic1298.htm

CDC - Leptospirosis
- Factsheet with cause, symptoms, treatment, and prevention.
- http://www.cdc.gov/ncidod/dbmd/diseaseinfo/leptospirosis_g.htm

CDC Travelers' Health Information on Leptospirosis
- Includes risk for travelers, cause, prevention, and treatment.
- http://www.cdc.gov/travel/diseases/lepto.htm