A positive hepatitis B 2.5 indicates that the body is infected with the hepatitis B virus and is now in the recovery phase of the infection to gain immunity. The five items of hepatitis B are generally in order: the first item is hepatitis B surface antigen; the second item is hepatitis B surface antibody; the third item is hepatitis B e antigen; the fourth item is hepatitis B e antibody; the fifth item is hepatitis B core antibody, so the two or five items are hepatitis B surface antibody and hepatitis B core antibody, which is an indication that the organism has been infected with the hepatitis B virus. But the surface antibody has been produced, that is, has a certain degree of immunity. If you can do a quantitative test, it is best to also test the titer of the hepatitis B surface antibody. If the antibody titer is higher, then the immunity is stronger and the level of protection against hepatitis B virus infection will be higher.