Give partner vaccine
It is uncommon to pass hepb by kissing, but it is possible.
So, a non-immune partner can get the vaccine (usually 3 shots) and be protected. Doctors usually check the blood for antibodies before and after vaccination. Hepb is in the blood. If both partners have some cracks or scrapes on the lips or inside the mouth, any canker sores, or any bleeding gums, then hepb can be passed.