切断传播途径,积极防治,是肝炎研究中亟待解决的大问题,已日益引起世界各国的普遍关注,本文结合新近文献仅就此作如下概述。 1 乙型肝炎的防治 目前公认的病毒性肝炎为甲、乙、丙、丁、戊5种,其中乙型肝炎病毒(HBV)是5种肝炎病毒中唯一的一种DNA病毒。估计目前全球有3亿多HBSAg携带者,中国约占1/3,其HBSAg阳性率为10.1％,父母的垂直传播为HBV传播的主要方式。 Severing the route of transmission and actively preventing and controlling it are major problems to be solved urgently in the study of hepatitis, which have aroused the widespread concern of all countries in the world. This article summarizes the following briefly with the recent literature. 1 Prevention and treatment of hepatitis B Currently recognized as viral hepatitis A, B, C, D, E five species, of which hepatitis B virus (HBV) is the only one of five kinds of hepatitis virus DNA virus. It is estimated that there are more than 300 million HBSAg carriers in the world at present, accounting for about 1/3 in China. The positive rate of HBsAg is 10.1%. The vertical transmission of parents is the main mode of HBV transmission.