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为了探讨子宫内垂直感染是乙型肝炎病毒母婴传播的一种重要途径，我们采用酶联法、巢式ＰＣＲ法及免疫组织化学等方法对胎儿血清、肝脏的乙型肝炎标志物进行检测。结果表明母亲ＨＢｓＡｇ 阳性者，其胎儿血清及肝脏中均可查到乙型肝炎病毒标志物，感染率可达到５３．３ ％ ，因此可以得出结论：宫内垂直感染是乙型肝炎病毒母婴传播的重要途径之一。
In order to explore the vertical intrauterine infection is an important way of mother-to-child transmission of hepatitis B virus, we used ELISA, nested PCR and immunohistochemistry to detect fetal serum and liver markers of hepatitis B The results showed that HBsAg positive mothers, fetal serum and liver can be found in Hepatitis B virus markers, the infection rate can reach 53.3%, it can be concluded that: intrauterine vertical infection is Hepatitis B virus mother and child One of the important ways to spread.