Hepatitis B 245 positive for life?

Do hepatitis B five tests, of which 245 are positive, said the past infection fruit hepatitis B virus, now there are antibodies in the body, this situation will last for life. But there may be surface antibody quantitative will be reduced or disappeared, this situation can be vaccinated against hepatitis B vaccine, reacquired antibody. In addition, it is recommended to further check liver function and hepatitis B virus quantitative, ruled out the possibility of latent hepatitis B.