(a) Relative abundance of the detected viral families in different timepoint before (A and B) and after (C, D, E and F) liver transplant. (b) Number of patients that are positive for the different viral families before (A and B) and after (C, D, E and F) liver transplant. (c) Relative abundance of the detected viral families in CI and HCC patients. CI: cirrhosis, HCC: hepatocellular carcinoma.