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目前全世界42亿人口中有2.16亿为乙型肝炎病毒(HBV)携带者。其中78%分布在亚太地区。日本也是乙型肝炎流行地区。1980年日本的死亡人口统计查明,死于慢性肝病和肝癌者达31,010人,而且40～60岁年龄组的死因分析中慢性肝病达11%之多。近年来日本学者对乙型肝炎的基础和临床做了大量的研究工作;在预防工作中也取得初步成效,全人口的HBV携带者阳性率已下降到2.0～2.8%。鉴于乙型肝炎流行有一定
Currently 216 million of the world’s 4.2 billion people are carriers of hepatitis B virus (HBV). 78% of them are in the Asia Pacific region. Japan is also a hepatitis B epidemic area. Japan’s death toll in 1980 found that 31,010 people died of chronic liver and liver cancer and 11% of them died in the age group 40-60. In recent years, Japanese scholars have made a great deal of research work on the basis and clinical practice of hepatitis B, and have achieved initial success in prevention work. The positive rate of HBV carriers in the entire population has dropped to 2.0-2.8%. Given the popularity of hepatitis B there is