老年期的免疫反应（作者译）
[Immunity reaction in old age (author's transl)].
作者信息
Friedel E, Schmidt M, Apostoloff E, Thilo W, Bode F, Kuhlmey J
出版信息
Z Alternsforsch. 1980;34(6):497-501.
PMID:7010803
Abstract
It was found that 61 per cent of ageing persons (average age 73 years) had no protective concentrations of tetanus antitoxin in their serums. After active immunization with a vaccine (tetanus toxoid) the increase of the tetanus antitoxin concentration was slower and lower in old age compared to the young age.
摘要
研究发现，61%的老年人（平均年龄73岁）血清中破伤风抗毒素浓度未达到保护水平。与年轻人相比，老年人接种疫苗（破伤风类毒素）进行主动免疫后，破伤风抗毒素浓度的升高更为缓慢且增幅更小。
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