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为了解全细胞百白破联合疫苗 (DTwP)基础免疫后抗体持续时间 ,对DTwP免疫 3针后间隔 1个月和 2个月的百日咳、白喉、破伤风抗体水平的变化进行了初步研究 ,结果表明 :免疫后 2个月 ,白喉、破伤风抗体滴度 ,与免疫前相比 ,差异均有显著的统计学意义 ,并且仍然远 >0 0 1HAU的保护水平。百日咳疫苗免疫后 2个月 ,其抗体滴度仅为免疫后 1个月抗体滴度的 2 5 %左右 ,免疫后 1个月和 2个月抗体滴度间差异有非常显著的统计学意义。
In order to understand the duration of antibody after basic immunization of DTWP, the changes of pertussis, diphtheria and tetanus antibody levels at 1 month and 2 months after DTwP immunization were studied. Results The results showed that the titers of diphtheria and tetanus were significantly different from those before immunization at 2 months after immunization, and the differences were still significant (> 0 0 1HAU). Two months after immunization with pertussis vaccine, the antibody titers were only about 25% of the antibody titers one month after immunization, and there was a significant difference between the antibody titers one month and two months after immunization.