Related Experiment Video
Updated: Aug 29, 2026

A Cell Culture Model for Producing High Titer Hepatitis E Virus Stocks
Published on: June 26, 2020
[Risks associated with hepatitis infection in patients with hepatitis C and opportunities for prophylaxis]
1Zakład Medycyny Rodzinnej i Pielegniarstwa Srodowiskowego Akademii Medycznej w Białymstoku. schlabicz@poczta.onet.pl
Insights
Patients with chronic hepatitis C (HCV) are at risk for hepatitis A virus (HAV) infection, which can cause severe liver injury. Vaccination against HAV is recommended for unprotected HCV patients to prevent serious complications.
Area of Science:
- Hepatology
- Infectious Diseases
- Vaccinology
Context:
- Patients with chronic hepatitis C (HCV) are susceptible to hepatitis A virus (HAV) infection.
- HCV patients with pre-existing liver disease face a higher risk of severe outcomes, including hepatitis fulminans and mortality, if infected with HAV.
- In Poland, a significant portion of adults under 35 with HCV lack natural immunity to HAV.
Purpose:
- To assess the risk of HAV infection in patients with chronic HCV.
- To evaluate the safety and immunogenicity of inactivated HAV vaccines in HCV patients.
- To determine the necessity of HAV vaccination in the HCV population.
Summary:
- Chronic hepatitis C patients are at risk for HAV infection, with potentially higher incidence in anti-HCV positive drug users.
- Hepatitis A infection is linked to increased hepatitis fulminans and mortality in individuals with pre-existing liver disease.
- Inactivated HAV vaccine is safe and immunogenic in HCV patients, with vaccination recommended for unprotected individuals upon HCV diagnosis.
Impact:
- Highlights the importance of HAV vaccination in preventing severe liver disease and mortality in HCV patients.
- Provides evidence supporting the routine use of HAV vaccines in the management of chronic hepatitis C.
- Informs public health strategies for hepatitis A and C prevention and control programs.
Abstract:
Patients with chronic hepatitis C remain at risk of acquiring hepatitis A infection and additional liver injury. The estimated risk of HAV infection in HCV patients is similar to that in general population but may be higher in anti-HCV positive drug users. Despite some controversies available data indicate that hepatitis A infection is associated with much higher incidence of hepatitis fulminans and mortality rate in individuals with pre-existing liver disease. In Poland about 60% of all HCV-infected adults have natural immunity to HAV, however majority of those under 35 years majority remains unprotected. Currently available inactivated HAV vaccine proved to be highly immunogenic and safe in patients with hepatitis C. The vaccination should be administered in each unprotected patient upon diagnosis of HCV infection.
Related Concept Videos
Hepatitis
Viral Hepatitis I: Introduction
Inhibitors of Viral Protein Synthesis
Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow
Esophageal Varices-II: Clinical Features and Management
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
Healthcare Associated Infections II: Preventive Measures
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...