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Identifying HBV reactivation
| Original serologies | Original state | Change in laboratory studies indicating reactivation |
|---|---|---|
| HBsAg-positive | Inactive chronic HBV | HBV DNA undetectable → HBV DNA detectable or HBV DNA increase by 100-fold |
| HBV DNA variable | Occult chronic HBV | |
| HBsAg-negative Anti-HBc–positive |
Resolved HBV | HBsAg-negative → HBsAg-positive or HBV DNA undetectable → HBV DNA detectable |
