I had my hbsag non reactive test result at the 7week potential exposure on HBV and immediately I took my first shot of the vaccine. However, 20-30 minutes after the vaccination, I drank a couple of bottles of beer. approximately ( 4-5 bottles of beer ) and now I'm on fear if my vaccine effectivity or efficiency will change,decrease and will goes low. please advise me. I'm very worried. Do I need to re-take my first vaccination again? what will I do?