慢性肝病是危害人民健康和劳动力的常见病。慢性肝病中大多数是慢性病毒性肝炎。慢性肝炎病人血清中常存在乙型肝炎表面抗元(下称HBsAg)。HBsAg长期持续,可能由慢性活动性肝炎发展至肝硬化,个别病人可能演变为原发性肝癌。一般急性与迁延型病毒性肝炎较易治疗。迄今对慢性活动性肝炎和HBsAg长期携带者尚无满意的疗法。慢性肝炎的发病原理尚未完全阐明,目前多数人认为是乙型肝炎病毒感染后,宿主 Chronic liver disease is a common disease that endangers people’s health and workforce. The majority of chronic liver disease is chronic viral hepatitis. Hepatitis B surface antigens (HBsAg) are often found in the serum of patients with chronic hepatitis. Long-term HBsAg continued, may progress from chronic active hepatitis to cirrhosis, individual patients may evolve into primary liver cancer. Generally acute and persistent viral hepatitis easier to treat. To date there is no satisfactory treatment for chronic active hepatitis and long-term carriers of HBsAg. The pathogenesis of chronic hepatitis has not been fully elucidated, at present most people think that after the hepatitis B virus infection, the host