Abstract: Background: Medical ozone is more bactericidal, fungicidal, and virucidal than any other natural substance. Some studies proved that ozone infused into donated blood samples can kill viruses 100% of the time. Ozone, because of its special biologic properties, has theoretical and practical attributes to make it a potent hepatitis C virus (HCV) inactivator, which suggests an important role in the therapy for hepatitis C. Aim: The study aim is to evaluate the role of ozone therapy in decreasing HCV ribonucleic acid (HCV RNA) load ...