打乙型肝炎疫苗预防针,全程(三针)接种后抗体转率在95%以上,母婴阻断率为80—90%,接种三年后保护率90%。目前国产的乙肝免疫疫苗有10微克和30微克两种规格。母亲HB_sAG阴性和未作HB_sAG筛查的母亲的新生儿使用10微克三针免疫接种;母亲单纯HB_sAG阳 Hepatitis B vaccine vaccination, the whole (three) vaccination antibody rate of 95% or more, maternal and child blocking rate of 80-90%, vaccination three years after the protection rate of 90%. The current domestic hepatitis B immune vaccine has 10 micrograms and 30 micrograms two kinds of specifications. Neonates of mothers with HB_sAG negative and non-HB_sAG screening were immunized with 10 micrograms of three needles; mothers with HB_sAG alone