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乙型肝炎病毒(HBV)感染波及全球,全世界HBV携带者约3.5亿人,其中有一半集中在亚太地区。成人感染HBV后,大部分呈现亚临床感染过程,部分表现为急性病毒性肝炎,病毒很快被清除,极少部分发展为重型肝炎,另有小部分转变为慢性乙型肝炎,反复发病,持续多年,其中有些最终形成肝硬变或肝癌。新生儿期感染HBV后,病毒不易清除,90％转变为HBV长期携带者。丙型肝炎病毒
Hepatitis B virus (HBV) infection affects the whole world with about 350 million people worldwide with HBV carriers, half of them concentrated in the Asia Pacific region. In adults infected with HBV, most of them show subclinical infection process, some of them are acute viral hepatitis, the virus is quickly cleared, very few develop into severe hepatitis, while a small part of them turn into chronic hepatitis B, recurrent and persistent For years, some of them eventually formed cirrhosis or liver cancer. Neonatal infection with HBV, the virus is not easy to remove, 90% change to long-term carriers of HBV. Hepatitis C virus