Hepatitis B is mainly transmitted through blood, sexual transmission and mother-to-child transmission. The patient’s blood and body fluids carry the hepatitis B virus and have the potential to transmit it. However, the virus must enter the bloodstream directly in order to be contagious. For example, if I shake hands with a hepatitis B patient, even if he has the virus in his sweat, my hands are fine and will not be infected; however, if I have a break in my hand and then shake hands with a hepatitis B patient, there is a chance that the virus in his sweat will be transmitted to me. In China, the most common way to transmit the hepatitis B virus is through mother-to-child transmission, also called vertical transmission, which means that the baby’s mother is a hepatitis B patient, and the mother’s blood has the hepatitis B virus. During the process of delivery, the fetal skin surface may produce a wound, and the blood flows into the fetal wound, causing the fetus to be infected. Hepatitis B may also be transmitted to sexual partners through sexual intercourse. In addition, can eating together with a person with hepatitis B cause hepatitis B transmission? Hepatitis B is not transmitted through the digestive tract, i.e., eating together is not contagious.