Objective: To investigate the effect of TCM decoction ( Bushenjiedu Tang and Jianpijiedu Tang) on T cells in patients with chronic hepatitis B virus infection in different immune status. Methods: Thirty-six out-patients with chronic HBV infection were divided into immune tolerance group ( 18 cases ), immune clearance group ( 18 cases) according to their im- mune status, and the other 10 healthy persons were selected as control group. Ts (T cells) subset populations were diferentiated from peripheral blood mononuclear cells (PBMCs) ,...