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Updated: Apr 26, 2026

A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Epidemiology and natural history of hepatitis C virus infection
Mei-Hsuan Lee1, Hwai-I Yang1, Yong Yuan1
1Mei-Hsuan Lee, the Institute of Clinical Medicine, National Yang-Ming University, Taipei 155, Taiwan.
Insights
Hepatitis C virus (HCV) infection is a major cause of liver cancer. The REVEAL-HCV study tracked over 1000 individuals for 15 years, offering unique insights into HCV
Area of Science:
- Hepatology
- Virology
- Epidemiology
Background:
- Hepatitis C virus (HCV) infection impacts 130-210 million globally, significantly increasing hepatocellular carcinoma risk.
- HCV is linked to at least one-third of liver cancer cases and causes 350,000 deaths annually.
- Geographical variations in HCV prevalence and risk factors necessitate localized research.
Purpose of the Study:
- To elucidate the natural history of HCV-associated hepatocellular carcinoma.
- To identify potential seromarkers for predicting liver cancer risk in HCV patients.
- To analyze the progression of chronic hepatitis C to end-stage liver disease.
Main Methods:
- The REVEAL-HCV study prospectively followed 1095 Taiwanese residents with HCV antibodies for over 15 years.
- Participants acquired HCV primarily through iatrogenic transmission.
- Limited antiviral therapy use in the cohort allows for natural history observation.
Main Results:
- The review comprehensively examines HCV prevalence, risk factors, and natural history.
- Liver disease progression in the REVEAL-HCV cohort is detailed.
- Findings contribute to understanding HCV's long-term impact.
Conclusions:
- Prospective cohorts like REVEAL-HCV are crucial for understanding HCV natural history and liver cancer development.
- The study provides valuable data on HCV progression in a population with limited treatment.
- Further research can leverage these findings to develop better risk prediction and prevention strategies.
Abstract:
Hepatitis C virus (HCV) affects 130-210 million people worldwide and is one of the major risk factors for hepatocellular carcinoma. Globally, at least one third of hepatocellular carcinoma cases are attributed to HCV infection, and 350000 people died from HCV related diseases per year. There is a great geographical variation of HCV infection globally, with risk factors for the HCV infection differing in various countries. The progression of chronic hepatitis C to end-stage liver disease also varies in different study populations. A long-term follow-up cohort enrolling participants with asymptomatic HCV infection is essential for elucidating the natural history of HCV-caused hepatocellular carcinoma, and for exploring potential seromarkers that have high predictability for risk of hepatocellular carcinoma. However, prospective cohorts comprising individuals with HCV infection are still uncommon. The risk evaluation of viral load elevation and associated liver disease/cancer in HCV (REVEAL-HCV) study has followed a cohort of 1095 residents seropositive for antibodies against hepatitis C virus living in seven townships in Taiwan for more than fifteen years. Most of them have acquired HCV infection through iatrogenic transmission routes. As the participants in the REVEAL-HCV study rarely receive antiviral therapies, it provides a unique opportunity to study the natural history of chronic HCV infection. In this review, the prevalence, risk factors and natural history of HCV infection are comprehensively reviewed. The study cohort, data collection, and findings on liver disease progression of the REVEAL-HCV study are described.
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