Figure 3. Time to most recent common ancestor estimated using hepatitis C virus (HCV) NS5B gene sequences of isolates from HCV antibody–positive persons identified during HIV outbreak investigation, Unnao, India. Red indicates samples with HIV–HCV coinfection; blue indicates samples with HCV monoinfection. Mean estimated time to most recent common ancestor of HCV isolates with the respective 95% highest posterior density interval is 2012 (2008–2014), with posterior probability value of 1. GenBank accession numbers are provided for reference sequences. Scale bar indicates branch lengths. I, HIV–HCV co-infection; IC, HCV monoinfection.