[Sero-epidemiological study in Mauritania (1985-1986): incidence of treponematosis, hepatitis B virus, HIV virus and viral hemorrhagic fevers].

A serological serosurvey was made in different ethnic groups of Mauritania in 1985. A very high prevalence of hepatitis B markers was found with more than 20% of HBs antigen carriers. Treponema specific antibodies in low-age classes observed is a reflect of endemic syphilis. The seroprevalence of antibody against HIV and viral haemorrhagic fever viruses (Rift Valley fever, Crimean-Congo haemorrhagic fever and haemorrhagic fever with renal syndrome) was very low.