hepatitis b vaccination

[quincyg]

if i had hepatitis b vaccination and test fro hbsag test for hepatitis b .
will my result be positive?

[StephenCastlecrag]

I must say you ask very obscure questions.  They can test your HbsAg to see if you are infected. Testing for HBsAg cannot detect HBsAb. They can test your HBsAb to see whether you are protected from hbv infection. The test for HBsAg is different to the test for HBsAb. Different tests for different purposes.

[quincyg]

i tested negative for hbsag test for hepatitis b
i want to know hbsag is test for antibodies ??? or hepatitis b virus.

[StephenCastlecrag]

Vaccination injects HBsAg into your body. If you are a responder, you body will produce antibodies to the HBsAg for many years. So you will test positive to the antibody. You will not test positive to the HBsAg, because it is in your body for a very short time after the injection, and the cells in your body do not produce HBsAg.

[quincyg]

i mean does vaccination make u hbsag positive as they inject antibodies in your body of hepatitis b

[quincyg]

what i wanna know is that after vaccination does a person always test positive for hbsag or not

[StephenCastlecrag]

It depends whether you had chronic Hepatitis B BEFORE the vaccination. If you were HBsAg positive before vaccination, you will most likely test positive again for HBsAg.