KRT88P and Hepatitis: The authors further reported that de novo hepatitis occurred in 19% of liver transplantations from anti-HBc antibody-positive donors to HBs antigen-negative recipients, and that reactivation was observed in 15% of anti-HBc/HBs antibody-positive recipients and in 48% of HBV naïve recipients without prophylaxis, but that the risk of reactivation was greatly reduced under prophylaxis with HBIG, lamivudine, or their combination.