Recombinant DNA Yeast-Derived Hepatitis B Vaccine (RYHB vaccine) is comparable to and can replace Plasma-Derived Hepatitis B Vaccine (PHB vaccine) for the prevention of mother-nfant transmission of hepatitis B virus (...Recombinant DNA Yeast-Derived Hepatitis B Vaccine (RYHB vaccine) is comparable to and can replace Plasma-Derived Hepatitis B Vaccine (PHB vaccine) for the prevention of mother-nfant transmission of hepatitis B virus (HBV), but the duration of immune efficacy of RYHB vaccine is not clear. This study indicates the long-term efficacy for the prevention of mother-infant transmission of HBV. One hundred and six neonates born to HBsAg-arrier mothers with HBeAg positive were randomly divided into two groups, one receiving 20 μg per dose of RYHB vaccine and the another receiving 20 μg per dose of PHB vaccine on the day of birth, at 1 month and at 6 months (three times). Physical examination and blood tests were performed for all infants at 6, 12, 24, 36, 48 and 60 months of age. The results showed that the protective efficacies at 6, 12, 24, 36, 48 and 60 months were 67%, 75%, 63%, 62%, 57% and 56%, respectively for the RYHB vaccine group and 58%, 76%, 51%, 41%, 24% and 18%, respectively for the PHB vaccine group. The protective efficacy was notably significant in the last two years. The study indicates that the duration of protective efficacy is over 5 years with RYHB vaccine, being longer than that of PHB vaccine. These recipients of RYHB vaccine showed no side effects, and the vaccine is regarded as safe and effective.展开更多
目的了解重组酵母乙肝疫苗(recombinant yeast-derived hepatitis B Vaccine,YDV)在不同年龄组人群中的免疫学效果和安全性。方法选择兖矿集团某矿区0～62岁的903名乙型肝炎表面抗原(HBsAg)、乙型肝炎表面抗体(抗-HBs)和乙型肝炎核心抗...目的了解重组酵母乙肝疫苗(recombinant yeast-derived hepatitis B Vaccine,YDV)在不同年龄组人群中的免疫学效果和安全性。方法选择兖矿集团某矿区0～62岁的903名乙型肝炎表面抗原(HBsAg)、乙型肝炎表面抗体(抗-HBs)和乙型肝炎核心抗体(抗-HBc)三项指标均为阴性者,采用0-1-6的免疫程序接种YDV,分别于全程接种后1、12、24、36个月时检测血清HBsAg和抗-HBs。结果研究对象接种后3d内未发现中重度的局部和全身不良反应。全程免疫后第1、12、24、36个月,抗-HBs阳转率分别为86.71%、71.85%、50.23%、41.25%(χ2=477.27,P<0.01),呈逐年下降趋势(P<0.01);经年龄标准化后,女性抗-HBs阳转率在各阶段均高于男性,但无统计学意义(P>0.05);人群抗-HBs阳转率与年龄有着密切关系,随年龄升高而逐渐降低(P<0.05)。结论YDV具有良好的免疫源性和安全性。展开更多
文摘Recombinant DNA Yeast-Derived Hepatitis B Vaccine (RYHB vaccine) is comparable to and can replace Plasma-Derived Hepatitis B Vaccine (PHB vaccine) for the prevention of mother-nfant transmission of hepatitis B virus (HBV), but the duration of immune efficacy of RYHB vaccine is not clear. This study indicates the long-term efficacy for the prevention of mother-infant transmission of HBV. One hundred and six neonates born to HBsAg-arrier mothers with HBeAg positive were randomly divided into two groups, one receiving 20 μg per dose of RYHB vaccine and the another receiving 20 μg per dose of PHB vaccine on the day of birth, at 1 month and at 6 months (three times). Physical examination and blood tests were performed for all infants at 6, 12, 24, 36, 48 and 60 months of age. The results showed that the protective efficacies at 6, 12, 24, 36, 48 and 60 months were 67%, 75%, 63%, 62%, 57% and 56%, respectively for the RYHB vaccine group and 58%, 76%, 51%, 41%, 24% and 18%, respectively for the PHB vaccine group. The protective efficacy was notably significant in the last two years. The study indicates that the duration of protective efficacy is over 5 years with RYHB vaccine, being longer than that of PHB vaccine. These recipients of RYHB vaccine showed no side effects, and the vaccine is regarded as safe and effective.
文摘目的了解重组酵母乙肝疫苗(recombinant yeast-derived hepatitis B Vaccine,YDV)在不同年龄组人群中的免疫学效果和安全性。方法选择兖矿集团某矿区0～62岁的903名乙型肝炎表面抗原(HBsAg)、乙型肝炎表面抗体(抗-HBs)和乙型肝炎核心抗体(抗-HBc)三项指标均为阴性者,采用0-1-6的免疫程序接种YDV,分别于全程接种后1、12、24、36个月时检测血清HBsAg和抗-HBs。结果研究对象接种后3d内未发现中重度的局部和全身不良反应。全程免疫后第1、12、24、36个月,抗-HBs阳转率分别为86.71%、71.85%、50.23%、41.25%(χ2=477.27,P<0.01),呈逐年下降趋势(P<0.01);经年龄标准化后,女性抗-HBs阳转率在各阶段均高于男性,但无统计学意义(P>0.05);人群抗-HBs阳转率与年龄有着密切关系,随年龄升高而逐渐降低(P<0.05)。结论YDV具有良好的免疫源性和安全性。
