Does the baby have antibodies if the mother has hepatitis B antibodies?

Patient's question:

When the baby was born, they received the hepatitis B vaccine. Now, there is a hepatitis B patient in the household. I'm wondering if daily contact would infect the baby, for example, when eating?

Doctor's answer:

Hello, based on the situation you described, the baby has been vaccinated against hepatitis B promptly after birth, which is very good. As long as the hepatitis B vaccine is administered on schedule, antibodies are generally produced.
Advice: Hepatitis B is primarily transmitted through blood, sexual contact, and mother-to-child transmission. It is not spread through daily contact. Therefore, even if there is a hepatitis B patient in the family, as long as there is no contact with the aforementioned routes, the baby will not be infected.
Doctor's inquiry:

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