A 45-year-old female asked:
HC worker. 1992 Hep B vac, 2004 titer & booster. 2012 labs hep B neg. Labs done last wk; now told that Hep B test is positive?? How can this be?
1 doctor answer
Dr. Hunter Handsfield answered
52 years experience in Infectious Disease
The vaccine worked: Modified reply: At first I misinterpreted your question. Antibody levels produced by the vaccine often are low after years and sometimes may test negative, other times positive. If your positive test is only for hep B surface antibody (HBsAb, sometimes called anti-HBs), it just shows you are immune from the vaccine. But check with your doctor if you remain uncertain.
Answered on Jan 15, 2018
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