User talk:21neg

hello, I just want to know some facts about Hepatitis B because until now im confuse with the matters. Last 2006 my male friend donated blood to red cross and just last feb. 19.2008 he was diagnosed to have been reactive to HBsAg. According to him,he had a history of hepatitis when he was 9years old and underwent treatment,and now he is 21. He only had a sexual contact of his girlfriend who is also a nursing student who received a HBV vaccine. He said he remember he was exposed to blood when he helped an old woman who was hit by a motorcycle and that time he had a small wound on his finger and he only covered it with a plaster. According to the book I read, the presence of HBsAg in the blood entails 1. recovered from an Hep Infection 2. Continuing/chronic infection 3. receive HBV vaccine. Is it possible that the recent test turned out positive because he had a history of Hep 12 years ago? or did he possibly acquired it from the old woman? what about his girlfriend, is it possible that she can be infected even if she had took the vaccine 3years ago. What will they do to prevent the spread of virus if he had a chronic hep. b? please help us by sharing your knowlegde about it.Thank you.