Obj ective: To explore the effect of hepatitis B immunoglobulin(HBIG) blocking hepat itis B virus(HBV) infection from mother to infant.

• 目的:探讨高效价乙肝免疫球蛋白(HBIG)阻断乙型肝炎病毒(HBV)母婴传播的作用机理。