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作者用氯化铬被动血凝微量法检测健康人和破伤风患者经破伤风类毒素免疫后的抗体水平。研究对象为19名健康人(8人年龄在30岁以下,11人年龄在70岁以上)和21例未用抗毒素治疗的破伤风患者(平均年龄64岁)。初次免疫后30天、第2次免疫后15天
The authors used chrome chloride passive coagulation microassay to detect the level of antibody after tetanus toxoid immunization in healthy and tetanus patients. The study population consisted of 19 healthy individuals (8 under age 30, 11 over 70) and 21 untreated tetanus (mean age 64 years). 30 days after the first immunization, 15 days after the second immunization