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Purpose Of Review: Limited data exist on the prevalence, determinants, and outcomes of hepatitis delta virus (HDV) infection among HIV/hepatitis B virus (HBV)-coinfected persons. This review provides current evidence on the epidemiology, natural history, and treatment of HDV infection in patients with HIV/HBV coinfection and highlights future research needs.
Recent Findings: Cross-sectional studies in Europe, Africa, South America, and Asia show that the prevalence of HDV among HIV/HBV-coinfected patients ranges from 1.2 to 25%. No studies have evaluated the prevalence of HDV infection among HIV/HBV-coinfected patients in the USA. HDV infection increases the risk of hepatic decompensation and hepatocellular carcinoma among HIV/HBV-coinfected patients. HDV treatment remains limited to pegylated interferon-alpha, which results in sustained virologic response in fewer than 25%. Data on the epidemiology, natural history, and treatment of HDV among HIV/HBV-coinfected persons remain limited. More research is needed to address these knowledge gaps in order to better manage HDV coinfection in HIV/HBV-coinfected patients.
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http://dx.doi.org/10.1007/s11904-020-00508-z | DOI Listing |
Antiviral Res
September 2025
Department of Infection, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address:
Background: Hepatitis D virus (HDV) infection is the most severe form of human viral hepatitis. A poor virus-specific CD8T cell response may result in persistent HDV infection. We investigated anti-viral effect and mechanisms of ubiquitinated small hepatitis D antigen (Ub-S-HDAg) in HBV/HDV superinfected liver organoids.
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October 2025
Gastroenterology, Hepatology and Transplantation Division, ASST Papa Giovanni XXIII, Bergamo, Italy.
Background And Aims: Hepatitis B (HBV) and Hepatitis Delta virus (HDV) infection have undergone significant changes in Italy over the past few decades, but reliable and updated prevalence of chronic hepatitis B (CHB) and Delta (CHD) data are lacking. The aim of the study was to describe the epidemiology of CHB and CHD in Italy in 2024, based on real-world data.
Methods: The number of patients with a healthcare expenditure exemption for CHB (016.
Clin Exp Hepatol
June 2025
Department of Infectious Diseases and Hepatology, Medical University of Bialystok, Bialystok, Poland.
Aim Of The Study: To analyze long-term epidemiological patterns and trends in the burden of infection and mortality due to viral hepatitis in Poland before and during the COVID-19 pandemic.
Material And Methods: Data for the burden of the most common viral hepatitis types (HAV, HBV ±HDV, HCV, and HEV) over 2009-2023 were extracted from the national registries in Poland. The joinpoint regression model was used to analyze trends in viral hepatitis infections and mortality.
Brief Bioinform
August 2025
Department of Computer Science, Ben-Gurion University of the Negev, David Ben-Gurion Blvd. 1, Beer-Sheva 8410501, Israel.
Hepatitis delta virus (HDV) is geographically classified according to eight known genotypes. The combined hepatitis B-hepatitis D (HEPB-HEPD) disease is the severest form of chronic viral hepatitis in humans and is characterized by mortality rates of ~20%. Hepatitis delta virus has no FDA approved therapy and its only available vaccine is the one for HEPB.
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September 2025
Division of Gastroenterology and Hepatology, Foundation IRCCS Ca' Granda Maggiore Polyclinic Hospital, Milan, Italy.
Hepatitis D is considered the most severe form of viral hepatitis in humans, and chronic HDV hepatitis patients typically show a more rapid progression to cirrhosis and a higher mortality. While awareness of the disease has increased, it still remains underdiagnosed and of challenging treatment. Besides the physical toll that an HDV infection takes, the psychological impact needs to be considered when treating the infected patients.
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