Fig. 1

Phylogenetic tree of HCV NS5B sequence based on maximum likelihood using MEGA X version 10.2.1 under maximum-likelihood method with 1,000 replicate bootstrap under the GTR + G + I model. Cluster Picker software identified 7 phylogenic clusters at a branch support threshold of 0.7 and a genetic distance threshold of 0.045 (green branch line and green alphabet), which represented patient-to-patient transmission clusters (17 patients are shown by red circle). Red right square brackets represent each hemodialysis center. Scale bars indicate nucleotide substitutions per site