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作者采集479名年龄为5—12岁小学生的静脉血,作麻疹血凝抑制(HI)抗体分析。最初实验,最低血清稀释度是10(其倒数表示滴度),后来又作滴度由2开始的 HI 试验。HI 滴度<2的儿童定为易感者。结果454人(94.8%)对麻疹
The authors collected 479 pupils of 5 to 12 years of primary school blood for measles hemagglutination inhibition (HI) antibody analysis. In the initial experiment, the lowest serum dilution was 10 (the reciprocal of which indicated the titer) and later the HI test with titer starting from 2. Children with HI titers <2 were considered as susceptible. Results 454 (94.8%) measles