乙型病毒性肝炎 (乙肝 )是影响大学生学业的主要疾病之一 ,位居大学生因病退、休学的第二位[1] 。由于乙肝传染性强 ,大学生又是一组集体居住的易感人群 ,因此做好大学生的肝炎预防工作是高校保健的重要任务之一。为此 ,我们对 1996～2 0 0 1年 6年间徐州医学院入校新生乙肝两 Hepatitis B virus (hepatitis B) is one of the major diseases that affect college students’ academic progress, ranking the second among undergraduates who quit school due to illness [1]. Because hepatitis B is contagious and college students are also a group of susceptible people who live together in groups, it is one of the most important tasks for colleges and universities to do well hepatitis prevention work. To this end, we from 1996 to 2001 six years of Xuzhou Medical College newborn hepatitis B two