No record of vac hep b from2006( i know had 3 shots) gp wanted start a fresh ,jab in nov2015 could this distort result for antibody test today>1000?

Boosting Hep B: If you had the primary series (3 shots) of Hepatitis B vaccine, and then you had an additional shot sometime later - this will 'boost' your immunity. The Hep B series is extremely good (immunogenic), so I suspect this booster shot revved things up and your immune system is now super charged. A lot of that shot administration is for record keeping/schools etc. A titre is helpful to 'prove' immunity