What does a negative hepatitis B surface antibody mean?

Patient's question:

What does HBsAb 46.856 <10 negative mean? Why did a doctor add a plus sign after it?

Doctor's answer:

"+" indicates a positive antibody response, proving the presence of hepatitis B antibodies, but your antibodies are a bit weak and need to enhance the anesthesia hepatitis B vaccine. A plus sign for surface antibodies indicates the presence of hepatitis B antibodies. According to the test results, the antibody level is not high, and it is recommended to digest the anesthesia hepatitis B vaccine. There are many treatment methods for hepatitis B, but since the symptoms of patients differ, the diagnostic methods used also vary. Therefore, patients need to be examined and diagnosed promptly to receive appropriate treatment.

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