Objective To study the expression of HLA-DR on CD4+ lymph cells and CD28 on CD8++ lymph cells on peripheral blood of hepatitis B evaluate patients celluar immunity.

• 目的检测乙肝患者外周血CD4+淋巴细胞表面HLA-DR和CD8++淋巴细胞表面CD28的表达情况,评价乙肝患者的细胞免疫状态。