What exactly is HBsAg and HBsAb? What exactly is the difference between HBsAg and HBsAb? Are they antibodies that protect against the HBV or is it the actual virus?
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HBsAg (Hepatitis B surface antigen) - A "positive" or "reactive" HBsAg test result means that the person is infected with hepatitis B. ... A positive anti-HBs (or HBsAb) test result means you are “immune” and protected against the hepatitis B virus and cannot be infected.
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Ag is the antigen and Ab is the antibody. ... Presence of either HBsAb and/ or HBsAg mean different things: ... Also, it protects the body from getting HBV in the future
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