In Mongolia, mortality from hepatocellular carcinoma (HCC) is one of the highest in the world. Viral hepatitis is the main cause of HCC: the prevalence of hepatitis B (HBV) estimated at 11% In Mongolia, hepatitis C (HCV) at 8.5%, and hepatitis Delta (HDV) at 40-60% in HBV-infected patients. Viral hepatitis are essentially asymptomatic and therefore require systematic screening for diagnosis. Once a diagnosis of chronic viral infection has been established, specific therapies are available to reduce the morbidity and mortality of these patients. A study carried out in California in the Mongolian community found an HBV prevalence of 9.7% and positive HDV serology in 41% of these patients.
There is a large Mongolian community in France, estimated at between 5,000 and 6,000 patients. Although the majority of these patients are covered by French social security; however, access to care and screening for viral hepatitis often remain difficult and insufficient for migrant or vulnerable populations in France The aim of this study is to screen the Mongolian community in France for viral hepatitis, and then initiate a program of care and treatment.