HCV RNA Fingerstick Assay as Useful Point of Care of Diagnostic Tool for Drug Users in Brussels

Inclusion Criteria: * (ex) drug users * a risk of Hepatitis C infection * French speaking * Either patient with a positive serology for HCV who have never performed HCV RNA by Polymerase chain reaction (PCR) by a peripheral venous sampling (due to difficult venous access, financial problem, medical insurance problem or other reasons) either patient with a suspicion of reinfection for whom the HCV RNA PCR by peripheral venous sampling is not reimbursed by health insurance Exclusion Criteria: * Age \<18 years * Cepheid GeneXpert HCV VL Fingerstick will not use to assess the Sustained Virological Response (SVR) at 12 weeks after the end of an antiviral treatment