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本文对 HBsAg 阳性母亲分娩的婴儿分别于出生时、出生后1月、2月接种3次乙肝疫苗,观察其阻断效果。
In this paper, HBsAg positive mothers gave birth to infants were born at birth, 1 month after birth, 2 months inoculated three times hepatitis B vaccine to observe the blocking effect.