Consult you doctor if you need booster shot or not I just have mine 1 year age and the antibody now is 29 I have to check again after 5 years.
Thanks for your reply that makes me relief. I have been taken the vaccinating for many time.
But this time the antibody that i have is only 13. The range for antibody positive starts from 12. I don't know what i have to do. Thanks
You should test for Hbv titer to see the anybody B in your blood if its low and you already have your 3 shot vaccination you should have now (booster shot) if not you have to be vaccinated and to check every 5 years >
Same as my case.