打完乙肝疫苗加强针之后

来自闫杰医生的专业解答，快打开看看是否又获得了新的知识点～

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快速问医生

病情分析：你好！根据你说的情况分析，接种乙肝疫苗后，一般半个月后会产生抗体，如果以前已经有抗体，只是抗体滴度不高，这种情况一般不会被感染。如果以前一点抗体没有，最好采取安全措施。保持好的心态，祝你身体健康！

闫杰

主任医师

提示：本内容仅作参考，不能代替面诊，如有不适请尽快线下就医

问题描述：打完乙肝疫苗加强针，多久后能起效果，半个月后和老公同房会不会感染。