― Hepatitis B infection is infectious disease of liver caused by hepatitis B virus (HBV). Hepatitis B was known previously as serum hepatitis. It is endemic in parts of Asia (including China) and Africa. According WHO estimate every year more than half a million people die due to hepatitis B virus infection. ∙ How common is hepatitis B infection? ∙ It is estimated that approximately one third of world population has been infected at some point of their life. Out of these [...].