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Hepatitis B Core Antibody Reactive

I recently attempted to donate blood however, I received a letter from the blood center saying that I tested positive/reactive to Hepatitis B Core Antibody, but negative for Hepatitis B Surface Antigen.  However, three years ago before entering college I received the set of three immunizations against Hepatitis.  I was wondering if you could tell me what having tested reactive for the Hepatitis B Core Antibody means and how this could have happened if I was immunized.  
Thank You,
Chris
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Avatar universal
It means you have immunity against hbv.
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Avatar universal
I was recently stuck with a dirty needle and I was tested for Hepatitis and HIV...the HIV test was negative and the HEP C was negative and the HEP B Surface AG was non reactive but the HEP B Surface AB, QL was reactive. what does this mean????
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Avatar universal
hello everybody.

i have donated blood 2 month ago and i result positive to hepatitis B.the result was HBsAg Q2 608.84 S/co. i want to know if i have to warry. i have hepatitis B at least from one year ago, because i have made another donation but they make an error with the phone number and i have learn thi thing only 1 month ago.

thank you in advance
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Avatar universal
HELLO.

I have made the test of hepatitis B, and im Reactive 608.84 S/CO.
i know that at least i hve a year that im reactive because one year ago i make the test but i had no answer because of wrong phone call.
i need to know if is serious my situation or not.

thank you in advance.
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Avatar universal
your son's hbsag negative result..means no hep b virus..
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Avatar universal
WAT DOES IT MEAN?

hbsAG +
Anti HBs +

Please ans?
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