No one is officially immune to hepatitis after being vaccinated until the vaccination series is completed and a titer is done to verify immunity. Having the titer done can be just as important as having the vaccinations.
I think there are currently 7 different types of Hepatitis (A thru G) but only Hepatitis A & B have effective vaccines available. So the other types of hepatitis can still be contracted even if you have immunity to A & B.
I think immunity to HBV may provide protection from Hepatitis D (Delta Virus) because I believe the Delta Virus can only survive in someone who is already infected with HBV……not really sure on that.
i have yet to test my kids.
i have a 6 yr old and a 3 year old. we spoke to their doctor after i found out i had it and he assured us they are up to date with theri vaccination specially hepB. i am still gonna find out their level of antibodies since a test may show negative for hbsag but does not show any antibodies for their age
If HBsAB strong enough, not necessary for HBV.