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母婴传播是我国乙肝病毒(ＨＢＶ)传播的重要途径。目前,阻断母婴传播有效的方法对新生儿在出生后24小时内进行乙肝疫苗的预防接种。为了解乙肝疫苗的预防接种时间与预防效果的关系,我们调查了168名儿童在分娩前其母亲已感染了ＨＢＶ、出生后均在不同时期内按程序接种过乙肝疫苗
Mother-to-child transmission is an important way of transmitting hepatitis B virus (HBV) in our country. At present, the effective method of blocking mother-to-child transmission is to vaccinate a newborn against the hepatitis B vaccine within 24 hours after birth. In order to understand the relationship between the duration of vaccination and the preventive effect of hepatitis B vaccine, we investigated 168 mothers who had been infected with HBV before delivery and who were vaccinated with HBV at different times after birth