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意大利米兰大学的 Alessandro Zanetti 博士等在《柳叶刀》杂志上报告,接种乙型肝炎疫苗后的抗体效价可以维持10年以上,因而可以得到长期保护,所以没有必要再次接种疫苗。该研究对象为1200名意大利人,他们在出生后即接种了乙肝疫苗,此外还有446名意大利空军军人,他们在青春期时接种过乙肝疫苗。研究发现,接种疫苗后10年,将近2/3的儿童,以及近9/10的意大利空军新兵体内仍有较高滴度的乙肝免疫抗体。但乙肝疫苗的效果能否保持一
Dr. Alessandro Zanetti at the University of Milan, Italy, et al. Reported in The Lancet that the antibody titer after hepatitis B vaccination can be maintained for more than 10 years and therefore can be protected for long periods of time, so there is no need to re-vaccinate. The study targeted 1,200 Italians who were vaccinated against hepatitis B after birth, in addition to 446 Italian Air Force soldiers who had been vaccinated for hepatitis B during adolescence. The study found that nearly two-thirds of children 10 years after vaccination, and nearly 9/10 Italian Air Force recruits still have higher titers of hepatitis B immune antibody. But the effect of hepatitis B vaccine can maintain one