If all family members have hepatitis B virus antibody, they can live together normally. If they do not have hepatitis B virus antibody, it is recommended to separate daily necessities and cutlery so as not to spread the infection to family members. If all family members have hepatitis B virus antibody, you can live with your family normally, such as talking, hugging, eating meals together, etc. without infecting your family. If your family members do not have antibodies against hepatitis B virus, it is recommended that you keep your daily necessities separate, such as toothbrush, towel, cutlery, and use chopsticks when having meals, regardless of whether the virus is replicating or not, in order to avoid spreading the infection to your family members. If you have hepatitis B, it is recommended that you seek medical attention. If the virus is replicating, antiviral treatment (entecavir, lamivudine, etc.) should be given under the supervision of a physician.