World Hepatitis Day

World Hepatitis Day, observed on July 28th, raises global awareness about viral hepatitis, a group of infectious liver diseases that collectively affect hundreds of millions of people worldwide and cause over a million deaths annually, comparable in scale to deaths from tuberculosis or HIV/AIDS. The World Health Organization established the observance, marked on the birthday of Nobel Prize-winning scientist Baruch Blumberg, who discovered the hepatitis B virus and developed the first hepatitis B vaccine, achievements that fundamentally transformed prevention and treatment options for one of the most common hepatitis strains. Viral hepatitis encompasses several distinct types, labeled A through E, each caused by a different virus with varying transmission methods, severity, and available treatments, with hepatitis B and C posing particular long-term health concerns since chronic infection can lead to serious complications including liver cirrhosis and liver cancer if left undiagnosed and untreated for extended periods. Despite the availability of effective vaccines for hepatitis A and B and increasingly effective antiviral treatments, including medications that can now cure most cases of hepatitis C, the World Health Organization estimates that the vast majority of people living with viral hepatitis worldwide remain undiagnosed, lacking access to testing, treatment, or basic awareness of their infection status. The observance promotes expanded testing access, vaccination campaigns, and public education about hepatitis prevention and treatment, working toward the WHO's goal of eliminating viral hepatitis as a major public health threat.