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瑞典从1982年开始,用麻疹、风疹和流行性腮腺炎(MMR)三联疫苗在18月龄和12岁儿童中实施两针免疫计划。1985～1989年,每年接种12岁的在校学生。在接种前和接种后两个月采血,用琼脂扩散溶血试验(HIG)检测抗体,其中麻疹抗体也用ELISA和中和试验检测。本文未提及18月龄儿童的免疫情况。在实施两针免疫计划前,自70年
Sweden Since 1982, a two-dose immunization program has been implemented in 18-month-old and 12-year-old children with measles, rubella and mumps (MMR) triple vaccines. From 1985 to 1989, 12-year-old students were vaccinated annually. Blood samples were taken before inoculation and two months after inoculation. Antibodies were detected by agar diffusion hemolysis (HIG), in which measles antibodies were also detected by ELISA and neutralization assays. The article does not mention the immunization of children aged 18 months. Before implementing the two-dose immunization program, since 70 years