What does hepatitis B surface antibody quantify positivity mean?

Hepatitis B surface antibody quantitative positive belongs to the normal phenomenon, due to the injection of hepatitis B vaccine caused, it belongs to protective antibodies, can protect the body from the virus attack. Usually should be regularly admitted to the hospital for hepatitis B two-half examination, once the hepatitis B antibody negative or weak positive symptoms, you should be admitted to the hospital injection of hepatitis B vaccine.