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关于国产HB疫苗的免疫持久性问题尚未定论,再兔问题也尚在研究中。国外报道初免后的免疫保护时间一般为3～5年。我们于1986年至1991年对200名少年儿童进行了国产血源乙肝疫苗的免疫持久性动态观察。现将结果报告如下。1 对象与方法1.1 对象本市4所小学1年级学生977人经放射免疫(RIA)法筛选,对其中370名
On the issue of immune persistence of domestic HB vaccine has not yet been conclusive, then the rabbit problem is still under study. Foreign reports after the first immunization immunization protection time is generally 3 to 5 years. From 1986 to 1991, we conducted a 200-year-old children’s immune persistence dynamic observation of domestic blood-borne hepatitis B vaccine. The results reported below. 1 Subjects and Methods 1.1 Subjects Four primary school students in Grade I 977 were screened by radioimmunoassay (RIA), of which 370