Clin Infect Dis:给予妊娠妇女百白破三联疫苗注射是否会对新生儿起到保护作用

2018-09-15 MedSci MedSci原创

本项研究试图探究破伤风 - 白喉 - 百日咳三联疫苗(Tdap)在妇女孕期注射是否可以为新生儿提供针对百日咳的特异性保护。

背景
本项研究试图探究破伤风 - 白喉 - 百日咳三联疫苗(Tdap)在妇女孕期注射是否可以为新生儿提供针对百日咳的特异性保护。

方法
本项研究是一项随机,对照,观察者单盲的多中心临床试验中,研究人员测量了妊娠期间Tdap的安全性和免疫原性以及婴儿在2,4和6个月时初次接种疫苗的免疫反应以及12个月时的加强免疫接种的影响。共有273名妇女在妊娠晚期接受了Tdap疫苗注射,研究结束时共有 261名婴儿提供了血清用于免疫原性分析。

结果
安慰剂组与实验组的不良事件发生率相似。孕期接受Tdap注射的婴儿脐带血水平比母体的百日咳类毒素(PT)水平高21%,丝状血凝素(FHA)高13%,百日咳杆菌素(PRN)高4%。这些婴儿在出生时和2个月时具有显着更高的PT抗体水平,并且在出生时和2个月和4个月时具有显着更高的FHA,PRN和FIM抗体浓度。但在6个月及12个月时体内各种抗体水平都出现一个明显的下降。

结论
该研究表明,妊娠期间Tdap的注射在婴儿早期可以导致较高水平的抗体浓度,但在初次加强疫苗注射后水平各项抗体的水平都无法达到高峰值。

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    2018-10-07 13718711b3m

    非常不错的临床经验,学习了,受益匪浅,涨见识,谢谢分享!

    0

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