Vaccination and/or antibody response status of exposed person* | Treatment when source patient is: |
HBsAg positive/source unknown or not available for testing | HBsAg negative¶ |
Unvaccinated/nonimmune | HBIGΔ × 1; initiate HBV vaccine series | Initiate HBV vaccine series |
Previously vaccinated◊, known responder§ | No treatment | No treatment |
Previously vaccinated◊, known nonresponder§ | HBIGΔ × 1 and initiate revaccination¥ or HBIGΔ × 2 | No treatment |
Previously vaccinated◊, antibody response unknown‡ | Single vaccine booster dose | No treatment |
If still undergoing vaccination | HBIGΔ × 1; complete series | Complete series |