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Updated: Jun 5, 2026

Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA
Published on: December 15, 2023
Diagnosis and monitoring of chronic viral hepatitis: serologic and molecular markers
1ICMR Virus Unit, Kolkata, GB 4, 1st Floor ID and BG Hospital Campus, 57, Dr. Suresh Chandra Banerjee Road, Kolkata 700010, India. runugc@gmail.com
Insights
Diagnosing and managing chronic viral hepatitis, including Hepatitis B (HBV), C (HCV), and D (HDV), requires sensitive serologic and molecular tools. These assays are crucial for monitoring treatment response and achieving sustained virological response.
Area of Science:
- Hepatology
- Virology
- Infectious Diseases
Background:
- Chronic Hepatitis B (HBV), Hepatitis C (HCV), and Hepatitis D (HDV) infections are significant global health concerns.
- These viral infections can lead to severe liver conditions such as cirrhosis and hepatocellular carcinoma.
- Effective diagnosis and management strategies are essential for patient outcomes.
Purpose of the Study:
- To highlight the importance of serologic and molecular tools in managing chronic viral hepatitis.
- To emphasize the role of these tools in diagnosis, staging, and monitoring treatment response.
- To underscore the necessity of sensitive assays for assessing sustained virological response.
Main Methods:
- Review of existing serological markers for HBV diagnosis and staging.
- Discussion of molecular assays for pretreatment evaluation, drug response assessment, and mutant identification in HBV.
- Explanation of quantitative HCV RNA and HCV genotype testing for treatment management in HCV and HDV.
Main Results:
- Serological markers aid in HBV diagnosis and staging.
- Molecular assays are vital for evaluating treatment efficacy and identifying resistance in viral hepatitis.
- Sustained virological response, indicated by undetectable viral RNA, is the primary treatment endpoint.
Conclusions:
- Virological assays are indispensable for the accurate diagnosis and effective management of chronic HBV, HDV, and HCV infections.
- Sensitive molecular tools are critical for monitoring treatment and confirming sustained virological response.
- Comprehensive diagnostic and monitoring strategies are key to combating chronic viral hepatitis globally.
Abstract:
Chronic Hepatitis B (HBV) and Hepatitis C (HCV) virus infections are global health problems which may cause cirrhosis and even hepatocellular carcinoma. Hepatitis D virus (HDV) though a satellite virus of HBV, can also cause chronic infection. Serologic and molecular tools are needed for the diagnosis, monitoring and therapeutic management of chronic viral hepatitis associated with HBV, HDV and HCV. In HBV infection several serological markers are available for diagnosis and staging; while molecular assays are important for pretreatment evaluation, assessing drug response and identification of mutants. The endpoint of chronic HCV and HDV treatment is the sustained virological response, defined by an undetectable HCV/HDV RNA in serum with a sensitive assay 6 months after completion of treatment. HCV genotype and quantitative HCV RNA testing plays an important role in determining treatment duration, doses and also assess the likelihood of treatment response. Thus, virological assays are important in the diagnosis and management of individuals infected with chronic viral hepatitis.
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