B型肝炎核心抗體 IgM（Anti-HBc IgM）B型肝炎核心抗體 IgG（Anti-HBc IgG）
Hepatitis B Core Antibody IgM (Anti-HBc IgM) & Hepatitis B Core Antibody IgG (Anti-HBc IgG)
*Hepatitis B Core Antibody IgM (Anti-HBc IgM)
-Normal values:
Negative (-) or nonreactive: <1.0 S/CO，Positive (+) or reactive: ≥1.0 S/CO
-Marker of acute infection: Indicates recent HBV infection, usually appearing within a few weeks of infection.
-Short duration: Generally declines within 6 months. If it remains positive, it may indicate chronic active infection.
*Hepatitis B Core Antibody IgG (Anti-HBc IgG)
-Normal values:
Negative (-) or nonreactive: <1.0 S/CO，Positive (+) or reactive: ≥1.0 S/CO
-Indicator of past or chronic infection: When HBV infection progresses to the chronic phase or after recovery, Anti-HBc IgG may persist for life.
-Cannot determine current viral status: Additional HBV markers (HBsAg, Anti-HBs, HBV DNA) are required for a comprehensive diagnosis.
*Significance of Antibody Positivity
-Past or current infection:
A positive Anti-HBc result indicates a past or present HBV infection, whether in the acute or chronic phase. It does not confirm immunity.
-Diagnostic indicator:
When combined with other tests (e.g., HBsAg, Anti-HBs), it helps determine whether the infection is past or ongoing.
*Health Recommendations
-Further testing:
If Anti-HBc is positive, additional tests for HBsAg and Anti-HBs should be conducted to determine whether the infection is acute or chronic.
-Vaccination:
If Anti-HBc is negative and there is no past HBV infection, HBV vaccination should be considered.
*Conclusion
A positive Anti-HBc result indicates a past Hepatitis B infection, regardless of recovery status. Further testing is necessary to determine the current infection status and take appropriate medical action.
*Hepatitis B Core Antibody IgM (Anti-HBc IgM)
-Normal values:
Negative (-) or nonreactive: <1.0 S/CO，Positive (+) or reactive: ≥1.0 S/CO
-Marker of acute infection: Indicates recent HBV infection, usually appearing within a few weeks of infection.
-Short duration: Generally declines within 6 months. If it remains positive, it may indicate chronic active infection.
*Hepatitis B Core Antibody IgG (Anti-HBc IgG)
-Normal values:
Negative (-) or nonreactive: <1.0 S/CO，Positive (+) or reactive: ≥1.0 S/CO
-Indicator of past or chronic infection: When HBV infection progresses to the chronic phase or after recovery, Anti-HBc IgG may persist for life.
-Cannot determine current viral status: Additional HBV markers (HBsAg, Anti-HBs, HBV DNA) are required for a comprehensive diagnosis.
*Significance of Antibody Positivity
-Past or current infection:
A positive Anti-HBc result indicates a past or present HBV infection, whether in the acute or chronic phase. It does not confirm immunity.
-Diagnostic indicator:
When combined with other tests (e.g., HBsAg, Anti-HBs), it helps determine whether the infection is past or ongoing.
*Health Recommendations
-Further testing:
If Anti-HBc is positive, additional tests for HBsAg and Anti-HBs should be conducted to determine whether the infection is acute or chronic.
-Vaccination:
If Anti-HBc is negative and there is no past HBV infection, HBV vaccination should be considered.
*Conclusion
A positive Anti-HBc result indicates a past Hepatitis B infection, regardless of recovery status. Further testing is necessary to determine the current infection status and take appropriate medical action.