Methods: Anti HBs antibodies were measured by ELISA titers ,and lymphocyte proliferation was detected through 3H TdR incorporation. Humoral and cellu lar responses of different groups were then compared.

• 方法 :以ELISA法检测免疫小鼠血清抗HBs抗体 ,另用3 H TdR掺入法测定淋巴细胞增殖活性 ,初步研究不同组的体液和细胞免疫应答。