Makindo Medical Notes"One small step for man, one large step for Makindo" |
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Related Subjects: |Chronic liver disease |Liver Function Tests |Ascites Assessment and Management |Budd-Chiari syndrome |Alcoholism and Alcoholic Liver Disease |Liver Transplantation
| Marker | Meaning |
|---|---|
| HBsAg | Earliest marker, present in acute or chronic infection. Persistence >6 months = carrier. |
| HBcAg | Not detected in serum; antibodies to core (IgM/IgG) are useful markers. |
| HBeAg | Indicates active replication & high infectivity. Persistence = chronic active infection. |
| Anti-HBs | Recovery & immunity (post-infection or vaccination). |
| Anti-HBc IgM | Recent infection (within 6 months). |
| Anti-HBc IgG | Past infection, persists lifelong. |
| State | HBsAg | anti-HBc | anti-HBs | IgM anti-HBc |
|---|---|---|---|---|
| Susceptible | - | - | - | - |
| Immune (natural) | - | + | + | - |
| Immune (vaccinated) | - | - | + | - |
| Acute infection | + | + | - | + |
| Chronic infection | + | + | - | - |