index |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |

The vaccination for prevention of chronic HBV infection and HCC has been proven to be highly effective by nation-wide vaccination for new-born babies. However, it is to be regretted that we still have not succeeded in developing a vaccine for HCV, which is another worldwide important cause of chronic infection and mlignancy of the liver.