is it really worth it?
--Asolutely, vaccination against HBV is invaluable! It will wipe out HBV from the face of the earth in a few generations!
I was thinking on your lines as you believe use of anti virlas in a n effort to cure HBV make other damages/side effects and using your own immune system to fight against the virus. Likewise vaccination in cases where the risk is very low or rare, is it really worth it? I mean you are inserting dead viruses in the body artificially!
do you think kids need to undergo vaccination?
--You are right. With mom HBsAg-, chances of baby infection are lower but not impossible. Still recommend vaccination.
any known complications from vaccination?
--Risk rate is very low. Not sure what exact complications there are.