Diagnosis of hepatitis B

Area of Science:

• Hepatology
• Virology
• Infectious Diseases

Background:

• Hepatitis B virus (HBV) infection is a significant global health concern, potentially causing severe liver conditions like cirrhosis and hepatocellular carcinoma (HCC).
• HBV diagnosis relies on identifying specific serological markers (e.g., HBsAg, anti-HBs, anti-HBc, HBeAg) and understanding its transmission routes (sexual, parenteral, vertical).

Approach:

• This article reviews diagnostic methodologies for HBV infection.
• It details the use of serological markers as a primary diagnostic step.
• It also explains the role of quantitative or qualitative molecular tests in confirming diagnoses, determining viral load, and identifying HBV genotypes.

Key Points:

• Serological markers are the initial step in diagnosing HBV infection.
• Molecular tests are essential for verification, viral load quantification, and genotype identification.
• Timely diagnosis is critical for managing acute, chronic, and occult HBV cases to reduce disease burden.

Conclusions:

• Effective diagnosis of HBV infection involves a combination of serological and molecular testing strategies.
• Understanding these diagnostic tools is vital for clinicians to manage HBV patients and prevent severe liver disease progression.