No, there is no gaurantee that vaccination will produce antibodies in everyone. There is 5-10% population, who do not respond to vaccination.
It is safe to get tested for HBsAB after 3-6 months of final shot.
Thank you that will definitely give me some confidence.Btw is it mandatory to get Tested for HBSAB after completing 3 shots of vaccination. Or its garunteed that HBsAB status will be positive after 3 shots of vaccination.
I assumed they got their first 2 shots a long time ago, and had stopped the course.
I don't think your last question can be answered with any confidence without knowing their HBsAb status. It might make you feel better to know that I have been staying with my (then) unvaccinated family for several years before I was detected HBsAg+, sharing nail-clippers, etc. They are all HepB free.
Sharp,
Thank you for the guidence.
I dont think they need to re-start their 3 shots,they completed their first 2 shots in last two months and waiting for another four months to go for their next shot.so i just wanted to know how effective are these two shots.Will they do any good to protect from the virus/it will be effective only after three shots?
They have to re-start their 3 shots for HepB. Not just because *you* can infect them... they can get infected at several other places! At doctors', dentists', etc.
It is safe to stay with them -- just don't share personal hygiene items, etc.