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儿童常规接种白喉类毒素,能有效地控制白喉发病,但近年来报道白喉流行多集中于成人。为此,作者对儿童免疫后循环抗体水平与时间的关系作了探讨。选择204名接种过白喉类毒素的儿童作为调查对象,年龄为11～14岁,其中按正規程序免疫者为规则免疫组,而接种针次及间隔非规程者为不规则免疫组,两组分别为114名与90名。同时采集两组儿童血液并分离血清,每名儿童末针距采血年限不一。血清样
Children are routinely vaccinated against diphtheria toxoid, which can effectively control the incidence of diphtheria, but in recent years, the prevalence of diphtheria has been reported in adults. To this end, the authors discussed the relationship between circulating antibody levels and time after childhood immunization. A total of 204 children immunized with diphtheria toxoid were selected as subjects, ranging in age from 11 to 14 years old. Among them, immunized persons were regular immunized group according to the regular procedure, while those vaccinated with non-routine needles were irregular immunized group. For 114 and 90. At the same time, two groups of children were collected blood and serum was separated, the end of each child stitch distance blood collection varies. Serum samples