The hepatitis B surface antigen must be positive, that is, the first item of the hepatitis B half test is positive. If you are positive for hepatitis B 2, 4 and 5, it indicates that your body was once infected with the hepatitis B virus, but the virus was cleared by your body and now you have surface antibodies and the ability to kill the hepatitis B virus, so you will not be infected with the hepatitis B virus again. The fifth positive item, hepatitis B core antibody, indicates that the body was once infected with the hepatitis B virus. As long as the body was once infected with the hepatitis B virus, the hepatitis B core antibody will persist in the body for many years. The second positive item is the positive surface antibody to hepatitis B. A positive surface antibody to hepatitis B indicates a good immunity to the hepatitis B virus now and no further infection with the hepatitis B virus in the future. The fourth positive item is also known as positive hepatitis B e antibody. A positive hepatitis B e antibody indicates that one has been infected with the hepatitis B virus.