01/08/2026
As part of 2026, we’re spotlighting hepatitis delta.
Hepatitis delta is a virus linked to hepatitis B. It increases the risk of liver cancer, and is responsible for 20% of liver disease and liver cancer cases globally among people living with hepatitis B. Despite this, it still lacks worldwide action.
If you have hepatitis B, or treat people with hepatitis B, demand hepatitis delta testing too. People living with hepatitis, healthcare professionals and advocates have a powerful role to play in building the momentum that makes change happen.
Get the facts about delta at worldhepatitisalliance.org/hepatitis-delta
World Hepatitis Day 2026 is supported by Mirum Pharmaceuticals