Le diagnostic de la fièvre jaune

Yellow fever is an acute hepatonephritis due to a flavivirus which is transmitted by mosquitoes (Aedes and Haemagogus). Yellow fever is found in tropical Africa and Amazonia areas. The monkeys are the reservoir hosts. After a short incubation period, the onset is abrupt with fever, headache, jaundice and haemorrhagic manifestations. Hepatic tests are disturbed and death results from failure of the liver and kidneys. Diagnosis is made by the liver biopsy (Councilman bodies) but often too late, post mortem. There is no specific treatment but the vaccination is safe and provides a long-lasting immunity.