摘要
对79名HBV标志阴性少年人群,以乙肝疫苗10μg×3的免疫剂量和0、1、2月的免疫程序进行接种,对其抗-HBs免疫应答和临床保护效果作了为期7年的定人随访。结果表明,抗-HBs阳转率在免后三个月时为100%,均值为3084MIU/ml。至免后84个月时疫苗接受者中仍有55.7%的抗-HBs水平≥10MIU/ml。6例检出抗-HBs,其中5例的抗-HBs持续处于高水平。全部观察对象无一例检出HBsAg或发生临床肝炎。少年接种乙肝血源疫苗至少7年内可具有保护性抗体。故在此期内不需加强免疫。
Seventy-nine adolescents negative for HBV serologic markers have been received three doses of 10μg HBV vaccine derived from human plasma by a schedule of 0、1、2 month,and subsequently follow-up with immune response and clinical protection annually for seven years. The results showed that the positive rate of anti-HBs was 100% at three months with GMTs 3084mIU/ml level. Among these vaccinees ,six have developed the anti-HBc,Five kept the anti-HBs at high level persistently. None of them developed detectable HBsAg or clinical hepatitis. Immunization of adolescents with plasma-derived HBV vaccine has proved here to have protective immune activity that can prevent or modify primary infection for at least seven years,booster immunization is not necessary during this period.
出处
《微生物学免疫学进展》
1995年第4期193-196,共4页
Progress In Microbiology and Immunology