Stay informed, stay protected with our campaign “Insights on HDV and HBV” – everything you need to know about hepatitis D and B.
To honour World Hepatitis Day 2025 (28 July), the two EU-funded projects TherVacB and D‑SOLVE release the fifth video in their joint awareness campaign to shed light on two often misunderstood viruses: hepatitis B (HBV) and hepatitis D (HDV).
In support of this year’s global theme – “Let’s break it down” – the campaign delivers clear, simple explanations that help communities understand how these viruses interact, why co-infection matters, and how science is working towards better treatments and a functional cure.
Hepatitis B and D are closely linked – hepatitis D can only occur in people who already have hepatitis B. Yet, many people living with hepatitis B are unaware of their risk of also contracting hepatitis D, which can lead to faster liver damage and worse outcomes. Raising awareness of this co-infection is essential to improve early testing, diagnosis, and care — and to ensure that both patients and healthcare providers recognize the importance of dual management and emerging treatment options.
The “Insights on HDV and HBV” video series provides accessible answers to key questions about diagnosis, co-infection, treatment needs, and research progress. Created by scientists and clinicians to answer most important questions raised in the patient communities, the series breaks down complex science into understandable messages to support early detection and increase awareness of functional cure strategies for HBV and treatment gaps for HDV.
The campaign was developed by TherVacB, D‑SOLVE, Deutsche Leberstiftung, ICE‑HBV, the Stephan Urban Foundation, and the German Center for Infection Research (DZIF).
Voices from Science and Medicine – The Campaign’s Experts at a Glance
Each video addresses current questions and brings together expert knowledge, clinical insights and lived experience from people affected by hepatitis B and D. The series offers accessible insights into co-infection, diagnosis, treatment, and research progress – helping communities better understand the risks, developments, and opportunities in tackling hepatitis B and D.
What is hepatitis D? What is the hepatitis D virus?
Answered by:
Prof. Dr. Dr. h.c. Stephan Urban (Germany), Virologist, DZIF professor for Translation Virology, Department of Infectious Diseases, Molecular Virology, University Hospital Heidelberg; Founder of the Stephan Urban Foundation
How is hepatitis D diagnosed?
Answered by:
Prof. Dr. Markus Cornberg (Germany), Hepatologist, Deputy Clinic Director of the Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School (MHH); D‑SOLVE and TherVacB consortium partner; DZIF Researcher
What happens if hepatitis D is not treated?
Answered by:
Prof. Dr. Heiner Wedemeyer (Germany), Director of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School (MHH) & D-SOLVE project lead; DZIF Site Speaker Hannover-Braunschweig
How is hepatitis D treated?
Answered by:
Dr. Helenie Kefalakes and Dr. Lisa Sandmann (Germany), Clinical Researchers, Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School (MHH) & D‑SOLVE consortium partners; DZIF Associated Scientists
How does the liver work?
Answered by:
Prof. Dr. Percy Knolle (Germany), Director of the Institute of Molecular Immunology and Experimental Oncology, University Hospital Rechts der Isar and Technical University of Munich (TUM); TherVacB consortium partner; DZIF Researcher
Get involved
Let’s break it down — share to help build awareness about viral hepatitis. Join us in raising your voice for hepatitis B and D. The time to act is now — hepatitis can’t wait.
- Watch the full series on YouTube: youtube.com/@TherVacB
- Learn more about the 2024–2025 campaign and leading partners:
- TherVacB: www.thervacb.eu/world-hepatitis-day-2024
- D-Solve: www.d-solve-consortium.eu/hepd-awareness-campaign
- Share your voice for World Hepatitis Day – 28 July 2025
- Follow our journey:
- TherVacB X @TherVacB_EU | BlueSky thervacb-eu.bsky.social
- D-Solve: D-SOLVE Consortium (@d-solve-consortium.bsky.social)
