Fig. 1

Postoperative ALT (U/L) transition; anti-HEV IgA, anti-HEV IgM, and anti-HEV IgG concentrations (OD at 450 nm) and HEV-RNA titers (copies/mL) in this patient. The patient became positive for HEV RNA on POD 3. Mildly abnormal ALT was observed on POD 60, with HEV RNA confirmed as being persistently positive. Ribavirin therapy was started on POD 327. ALT normalized on POD 382 and HEV RNA became undetectable on POD 417. The therapy was done until POD 467. HEV RNA remained negative on POD 536. IgA anti-HEV IgA, IgM anti-HEV IgM, IgG anti-HEV IgG, MMF mycophenolate mofetil, PSL prednisolone, TAC tacrolimus