The 4 th edition of Viral Hepatitis covers comprehensively the entire complex field of infections caused by all of the different hepatitis viruses, which affect many millions of people throughout the world with considerable morbidity and mortality. Howard Thomas and Arie Zuckerman are joined by Anna Lok from the USA and Stephen Locarnini from Australia as Editors. They have recruited leading researchers and physicians from many countries, who have produced an authoritative account of current knowledge and research on this important infection, including new insights into immune response to HBV and HCV. The result is a comprehensive account on all aspects of viral hepatitis, including rapid advances in the diagnosis, management, treatment and prevention of a complex infection, which in the case of hepatitis B, C and D may lead to severe complications including chronic hepatitis, cirrhosis and hepatocellular carcinoma. The latest edition of Viral Hepatitis offers an essential resource of current information for hepatologists, gastroenterologists, infectious diseases specialists and other clinicians, researchers, public health physicians and National and International Health Authorities.