Rare HCV subtypes and retreatment outcomes in a cohort of European DAA-experienced patients
Background and Aims: Data on the prevalence and characteristics of so-called rare HCV genotypes (GTs) in larger cohorts is limited.This study investigates the frequency of rare GT and resistance-associated substitutions and the efficacy of retreatment in a European cohort.Methods: A total of 129 patients with rare GT1-6 were included from the Europ