Hepatitis B virus is mainly transmitted through blood, sexual transmission and mother-to-child transmission, through contact with the body fluids of hepatitis B patients, including saliva, urine, secretions may also be transmitted, often for hepatitis B patients daily contact will not be transmitted, especially after vaccination against hepatitis B, with hepatitis B antibodies will be very low risk, generally will not be infected. In general, hugging, shaking hands and eating together with hepatitis B patients are not contagious. The transmission of the hepatitis B virus is mainly through blood, sexual and mother-to-child transmission, as described above. Normal people who have not received the hepatitis B vaccine should receive it in a timely manner to avoid infection with the hepatitis B virus.