Changes

Hepatitis B virus (HBV) is a DNA virus of the Hepadnavirus family.  Approximately 350 million people worldwide (including 1.2 million in the U.S.) are infected, with about 1 million people per year dying of HBV-related liver disease.

'''Hepatitis B virus''' (HBV) is a DNA virus of the Hepadnavirus family.  Approximately 350 million people worldwide (including 1.2 million in the U.S.) are infected, with about 1 million people per year dying of HBV-related liver disease.