Review Article
Hepatitis B Virus Infection in Tanzania: Current Status and Challenges
Table 1
Interpretation of Hepatitis B results [
4].
| Component | Test results | Interpretation |
| HBsAg | Negative | Susceptible to infection | Anti-HBc | Negative | Anti-HBs | Negative |
| HBsAg | Negative | Immune due to previous infection | Anti-HBc | Positive | Anti-HBs | Positive |
| HBsAg | Negative | Immune due to Hepatitis B vaccination | Anti-HBc | Negative | Anti-HBs | Positive |
| HBsAg | Positive | Acute hepatitis B infection | Anti-HBc | Positive | IgM anti-HBc | Positive | Anti-HBs | Negative |
| HBsAg | Positive | Chronic Hepatitis B infection | IgG anti-HBc | Positive | IgM anti-HB | Negative | Anti-HBs | Negative |
| HBsAg | Negative | Either: (1) Resolved infection (2) “Low level” chronic infection (3) Resolving acute infection | Anti-HBc | Positive | Anti-HBs | Negative |
| HBeAg | Positive | Presence of active HBV replication and high infectivity |
| HBsAg | Negative | Occult HBV infection | Anti-HBc | Positive/Negative | HBV DNA | Positive |
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