Citations

(1) Annual report, Centre National des Leptospires, 2008

(2) Vaccination guides, 2006 edition, Directorate General of Health, Technical commitee on vaccinations

(3) Ferguson IR : "A European Perspective on Leptospirosis. Microbiology Europe 1994"; jan-feb:8-11.

(4) Tables for professional diseases

(5) Report of the Working Group of the High Council for Health and Safety, New recommandations for the prevention of risks among people exposed to leptospirosis, a report presented and accepted at the meeting of March 18, 2005.

(6) Department of Agriculture and Fisheries "Leptospirosis"





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Update: December 2012































































            
IMAXIO markets a vaccine against leptospirosis.


Leptospirosis, a disease still relevant

Leptospirose


Leptospirosis is a zoonose with no required statement and probably underestimated. On French territory, nearly 800 cases of leptospirosis contamination were reported in 2009. 


Leptospirosis, everyone's

Leptospirosis is a potentially serious infectious disease caused by bacteria of the family of Spirochetes (Leptospira, Treponema, Borrelia, Lyme disease and syphilis). Leptospira interrogans is the origin of pathogenic forms and includes several serogroups. In France, Icterohaemorragiae serogroup is dominant (1) and is the agent of the majority of the most severe forms (2). 

This bacterium is resistant in a moist environment and can be present in many mammals: livestock (pigs, cows), pets (dogs, horses) and wild animals (hedgehogs, rats, rabbits). Rodents are the main carriers of leptopirosis and are healthy carriers.
In the host organism, bacteria will multiply and spread via the blood to different organs like the liver, lungs or kidneys. Bacteria present in the kidney are removed through the urine, contaminating soil and waterways.


What are the symptoms?

After an incubation period of 4-20 days, clinical expression is manifested by a flu-like syndrome with meningeal symptoms suggesting several diseases. Severe cases progress to kidneys, liver or or multi-visceral problems that can lead to death (5% of cases without treatment). It is therefore important to seek risk activities in order to guide the diagnosis as quickly as possible to provide effective treatment.


Contamination routes

Tansmission can be made by:


contamination




- directs ways: through contact with animals (dead or alive)




- indirect ways : through contact with contaminated water with the urine of infected animals











Leptospirosis can enter through wounds, mucous membranes (eye, mouth, nose, ...) and even a healthy macerated skin.


Who is at risk?

Leptospirosis is recognized as a professional disease and is listed by the general scheme of the french department of agriculture.

Professional activities at risk:

  • Water and sanitation
  • Building sites
  • Maintenance of green spaces
  • Farmwork

During freshwater spare time, the risk of contracting the disease is still present. Kayakers, fishermen, cavers are concerned.


What prevention?

For professionals:

  • Staff training
  • Wearing protective equipment (boots, coveralls, goggles)
  • Compliance with safety
  • Vaccination of exposed individuals. The use must be defined on the basis of official recommendations.

For the general population:

  • Avoid soiled hand contact with the eyes, nose or mouth
  • Disinfect and protect the skin wounds
  • Wash hands with soap and water after freshwater activities
  • Vaccination of exposed individuals. The use must be defined on the basis of official recommendations.