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作者使用明胶颗粒凝集试验(PA)测定了65份健康儿童血清的百日咳、白喉、破伤风抗体,以评估DTP免疫后的血清抗体滴度,并与常规检测血清抗体的方法进行比较。
The authors measured pertussis, diphtheria and tetanus antibodies in serum from 65 healthy children using the gelatin particle agglutination test (PA) to assess serum antibody titers after DTP immunization and compared them to routine tests for serum antibodies.