The elderly needn't inject _'s treatment of vaccine of hepatitis B

The elderly needn't inject _'s treatment of vaccine of hepatitis B
The elderly ( Generally point over 60) ,Can certainly inject vaccine of hepatitis B, however, most old persons do not need to inject, because most of the elderly of our country have already been infected with hepatitis B and virus. Someone, until old man carry on investigation over the more than one groups, find the intersection of hepatitis B and virus of they in the blood infect, indicate Damien 60- 80% , Full of HBsAg ' The table is resisted) Persons who carry, full of resisting HBs positively, the latter proved to is infected with hepatitis B and virus and obtains immunity.
Some old men will ask in life: I have not suffered from hepatitis B, how could produce immunity? In fact, this lets " recessiveness is infected " ,That is to say hepatitis B and virus invade your body unconsciously, without symptom, slight and uncomfortable, you have not felt and got, but you have already obtained immunity, will not be infected with hepatitis B and virus again, certainly not just need to inject vaccine of hepatitis B. The former (mean HBsAg is positive in the blood, or HB sAg and HBc are positive,etc.) Body in infect with already too hepatitis B virus,a hepatitis B virus last sign, do not obviously need to inject vaccine of hepatitis B either.
Some the elderly have never been infected with hepatitis B and virus, someone is infected with hepatitis B and virus or suffers from hepatitis B in one's own living environment, while keeping in touch with them, in order to prevent oneself from being infected, can inject vaccine of hepatitis B and is used for preventing. Should understand, after the elderly inject vaccine of hepatitis B, the replying rate of antibody is relatively low, that is to say that does not obtain immunity to hepatitis B easily, though inject vaccine of hepatitis B, blood difficult to produce antibody ' Resist - HBs) . This is the cause that because the elderly are with low immunological function, not so sensitive as teenagers' response to vaccine.
In addition, it is that another important purpose is to prevent hepatocarcinoma to inject vaccine of hepatitis B, is not infected by hepatitis B and virus, the primary hepatocarcinoma incident. However, hepatitis B and virus cause the time of hepatocarcinoma to generally take nearly more than 20 yearses, so, the old man prevents hepatocarcinoma from not having actual meaning with vaccine of hepatitis B to 60.
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