Differential response patterns to optimal antiviral therapy, peginterferon alpha plus ribavirin, are well documented in patients with chronic hepatitis C virus (HCV) infection. EVR is associated with elevated HCV QS diversity and complexity, especially in patients with significantly higher HCV genetic heterogeneity. Keywords: Hepatitis C virus, Quasispecies, Antiviral therapy Introduction Hepatitis C virus (HCV) infection… Continue reading Differential response patterns to optimal antiviral therapy, peginterferon alpha plus ribavirin,