Hepatitis B HBsAb (Hepatitis B Surface Antibody) Positive HBcAb (Hepatitis B Core Antibody) Positive means that you were once infected with the Hepatitis B virus but have now recovered and are immune. Positive HBsAb and HBcAb means that the five Hepatitis B tests, the second and fifth are positive. If the other three items are negative, it means that you have been infected with the hepatitis B virus in the past, the virus has been basically eliminated, which stimulates the body to produce antibodies and is resistant to the hepatitis B virus, and the body is recovering and is not infectious. If the second, fourth and fifth items are positive and the other items are negative, it indicates that he or she is in the recovery period of acute hepatitis B infection, and it is recommended that he or she should be retested for the five items of B regularly. Over time, the concentration of hepatitis B surface antibody may gradually decrease in some people, so periodic retesting may be considered when necessary.