Am I still imune to Hepatitis B?

Hello! I have a bit of a complicated question, hope you can help me, so I'll get right to the point. About 3 years ago I got my self vaccinated for Hapatitis B. I was in high school back then and it was a government supported program, all kids got vaccinated against this disease. About an year and a half ago, I had a very bad car accident, in which I got internal bleeding, I had to be urgently operated and I had my spleen taken out. I lost about 1.2 liters of blood and I needed blood transfusion. This question is not about that blood transfusion because I got tested for both HIV and Hepatitis C and they both came out negative, so the blood was ok. The question is: Am I still immune to Hepatitis B after I lost all that blood and spleen and needed transfusion? I have to specify that the vaccine is guaranteed to offer from 5 to 10 years of protection. I am looking forward for your answer, thank you.

[GrandmaA]

The nurse can do a titer to find out if you are still immune to Hep. B. The first time I did the 3 shots it did not take. I had to do them all over again. Only a titer (blood test) will tell. Sorry you had such a very bad auto accident and lost your spleen, but glad you survived.

[Hepatitis Researcher]

Even if the antiHbS titer falls below the limit of 100iU, thre is still protection in most vaccinated persons due to a long lasting class 2 T cell response that persists beyond the antibody production phase.

You did not tell if you ever had your titers checked after the vaccination. If you never reached a titer, then the above statement is not valid, it is only for those who reached a titer and later lost it.

[keypad2003]

I understand what you are saying, I did NOT do a titer, I didn't even know that the vaccine may not be efficient, they did not tell us at school. But I had all the shots in time and the vaccine producer was a good one, so I hope I am protected. But I understand that I cannot know for sure unless I get a blood test. Thanks for your info and time.