Hepatitis B is an infectious disease caused by the hepatitis B virus (HBV) which affects the liver. The virus is transmitted by exposure to infectious blood or body fluids. Infection around the time of birth or from contact with other people’s blood during childhood is the most frequent method by which hepatitis B is acquired in areas where the disease is common. Acute hepatitis B infection does not usually require treatment and most adults clear the infection spontaneously. Early antiviral treatment may be required in fewer than 1% of people, whose infection takes a very aggressive course (fulminant hepatitis) or who are immune-compromised. On the other hand, treatment of chronic infection may be necessary to reduce the risk of cirrhosis and liver cancer. Treatment lasts from six months to a year, depending on medication and genotype. Although none of the available drugs can clear the infection, they can stop the virus from replicating, thus minimizing liver damage.

In the present book, fifteen typical literatures about Hepatitis B treatment published on international authoritative journals were selected to introduce the worldwide newest progress, which contains reviews or original researches on medical science, virus disease, virology, epidemiology, ect. We hope this book can demonstrate advances in Hepatitis B treatment as well as give references to the researchers, students and other related people.