Abstract] Objective To understand the relation in Changsha area between HDV infection and the HBV blood serum markers.To study interaction during the superinfection of HBV and HDV.

• 目的了解长沙地区丁肝病毒（HDV）感染与HBV血清标志物模式的关系，探讨HBV与HDV在重叠感染时的相互作用。