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乙型肝炎是一种严重危害人类健康的世界性传染病 ,流行病学已证实人群中ＨＢｓＡｇ携带者中的 5 0 %来自于母婴传播。乙型肝炎病毒 (ＨＢＶ)母婴传播包括 :①宫内传播 ;②产时传播 ;③产后接触传播。1 宫内传播1.1 传播途径虽然早已证实了宫内感染的存在 ,但具体机制尚不清楚
Hepatitis B is a worldwide infectious disease that is seriously detrimental to human health. Epidemiology has shown that 50% of HBsAg carriers in the population come from mother-to-child transmission. Hepatitis B virus (HBV) mother-infant transmission include: ① intrauterine transmission; ② birth during delivery; ③ postpartum contact transmission. 1 intrauterine transmission 1.1 routes of transmission Although the presence of intrauterine infection has long been confirmed, but the specific mechanism is not yet clear