What does the presence of antibodies against HBsAG (anti-HBs) indicate in the pathogenesis of hepatitis B (HBV) (Hep B) infection?

Updated: Jun 08, 2021
  • Author: Nikolaos T Pyrsopoulos, MD, PhD, MBA, FACP, AGAF; Chief Editor: BS Anand, MD  more...
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The production of antibodies against HBsAg (anti-HBs) confers protective immunity and can be detected in patients who have recovered from HBV infection or in those who have been vaccinated.

Antibody to HBcAg (anti-HBc) is detected in almost every patient with previous exposure to HBV and indicates that there is a minute level of persistent virus, as demonstrated by the risk of reactivation in individuals who undergo immune suppression regardless of their anti-HBs status.

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