Figure 4From: Hyperimmune anti-HBs plasma as alternative to commercial immunoglobulins for prevention of HBV recurrence after liver transplantation Stability of anti-HBs levels in HIP. Anti-HBs levels in the plasma at the time of donation and after quarantine (freezing for 4-24 months): Anti-HBs decreased significantly between donation and the time of plasma transfusion after quarantine (p < 0.001, paired t test). There was no correlation between storage time and absolute or relative anti-HBs decrease.Back to article page