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乙型肝炎病毒(HBV)的母婴传播是指婴儿自母亲获得HBV 的感染过程。按其发生时间,一般分为三期:即围产期前传播、围产期传播和围产期后传播。其中以围产期传播最常见且最重要。现已公认,母婴传播是HBV的主要传播途径之一。一、母亲感染HBV 对婴儿的影响母亲在妊娠早期感染HBV,可发生流产、胎儿畸形或死胎;在妊娠中、晚期感染HBV,则可发生早产或生出低体重婴儿。此外,许多学者报道,HBV 的母婴传播亦是HBsAg 携带率较高的原因之一。在亚、非洲及其它
Mother-to-child transmission of hepatitis B virus (HBV) refers to the process by which an infant acquires HBV from her mother. According to the time of its occurrence, it is generally divided into three phases: pre-perinatal transmission, perinatal transmission and perinatal transmission. Among them, the most common and important one is perinatal transmission. It is now recognized that mother-to-child transmission is one of the main routes of transmission of HBV. First, the mother infected with HBV on the impact of the baby In the first trimester of pregnancy, mothers infected with HBV, abortion, fetal malformations or stillbirth; in pregnancy, late infection with HBV, you can premature birth or low birth weight infants. In addition, many scholars have reported that the mother-to-child transmission of HBV is also one of the reasons for the high HBsAg carrier rate. In Asia, Africa and others