Antibody to hepatitis B surface antigen. Indicates immunity from prior vaccination (anti-HBs positive, anti-HBc negative) or resolved natural infection (both positive).
| Sex | Age | Range | Notes |
|---|---|---|---|
| All | All ages | > 10 | Protective level ≥10 mIU/mL post-vaccination |
⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.