Doctors? Can someone please explain this to me..??

When someone is vaccinated against hepatitis b and they come in contact with it, say they have a blood exposure do the antibodies from the vaccine KILL the virus or do they just control the virus and it stays in your body? And if it stays in the body, could you eventually get it in 20 yrs if the vaccine were to run out?
Answer:
PLEASE talk to a doctor about this! This is about the 20th question you have asked about hepatitis B. Obvisouly you aren't getting good answers or answers you want to hear to your other questions, so talk to a doctor!

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When you get a vaccine, it means that the bacteria/virus is introduced to your body so that it can make antibodies to it. If you come into contact with the virus, the body already knows how to make the antibodies from before, so it is able to reproduce them and kill the virus. The vaccine does not run out. What can happen is that the virus mutates, like with the flu, and a new vaccine has to be remade to affect the new strain of the virus.

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A vaccine causes your body to make antibodies. The vaccine does not stay in your body to fight exposure. Antibodies are made by a special type of white blood cell. Their are acute phase antibodies to fight a current infection and "memory cells" that function later down the road when you get exposed again--you have immunity--that is what a vaccine does. Antibodies stop you from getting the infection in the first place. However, some vaccines need to be repeated periodically (like every 10 years for tetanus) because the immunity just wears off.

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After you have been vaccinated against hepatitis B the virus may enter your body, but your immune system will recognize it and kill it. You will not become infected, you will not become sick, you cannot pass it on and the virus will NOT stay in your body.
Should you have been vaccinated more than ten years ago, it is a good idea to have your antibodies tested to see if you are still protected. You might have to receive a booster shot if your antibodies are too low.

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