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A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Hepatitis C virus superinfection in hepatitis B virus chronic carriers: a reciprocal viral interaction and a variable
Evangelista Sagnelli1, Nicola Coppola, Cecilia Marrocco
1Division of Infectious Diseases, San Sebastiano Hospital, Caserta, Italy. evangelista.sagnelli@unina2.it
Insights
Superinfection with hepatitis C virus (HCV) in chronic hepatitis B virus (HBV) carriers can inhibit HBV replication. However, one patient experienced severe disease, highlighting potential risks.
Area of Science:
- Hepatology
- Virology
- Infectious Diseases
Background:
- The impact of hepatitis C virus (HCV) superinfection on chronic hepatitis B virus (HBV) carriers is not well understood.
- Chronic HBV carriers are a population with unique responses to secondary viral infections.
Observation:
- This study evaluated four patients with chronic HBV infection who developed acute HCV infection.
- Clinical and virological data were monitored for at least six months post-HCV infection.
Findings:
- Acute HCV infection led to reciprocal inhibition of HBV and HCV genomes in all patients.
- HBV-DNA became undetectable during acute HCV infection, persisting in three patients.
- One patient experienced severe hepatitis with ascites and coagulopathy, while HCV-RNA levels decreased or became undetectable.
Implications:
- HCV superinfection can suppress HBV replication, potentially altering disease course.
- The clinical presentation of acute HCV in chronic HBV carriers can range from mild to severe.
- Understanding these viral interactions is crucial for managing coinfected patients.
Background:
The virological and clinical impact of hepatitis C virus (HCV) superinfection in chronic hepatitis B virus (HBV) carriers has been poorly characterized.
Objective:
To evaluate the viral interaction, clinical presentation and course of the disease in four HBsAg/HBV-DNA positive chronic hepatitis patients who developed acute HCV infection.
Study Design:
To evaluate clinical, virological and laboratory data for at least 6 months from the onset of acute HCV infection in patients with chronic HBV infection.
Results:
Three patients with acute HCV infection had a normal clinical course, but the remaining patient had severe disease with ascites and a marked decrease in prothrombin activity. In all cases, plasma HBV-DNA, which had been detectable prior to the HCV infection, was no longer detectable when the acute HCV infection occurred. The inhibition exerted by HCV on HBV-DNA persisted throughout the follow-up period in three patients, but was temporary in the one patient who experienced an acute exacerbation of chronic HBV infection. HCV-RNA became persistently undetectable in two patients and reduced to low levels in the other two.
Conclusions:
Acute HCV infection in the four HBV chronic carriers was characterized by a reciprocal inhibition of HBV-HCV genomes and, in one case, by a severe course of disease.
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