HBsAg is the hallmark of HBV infection and is the first serological marker to appear in acute hepatitis B. Most patients recovering from acute hepatitis B clear HBsAg within 4-6 months after onset ...

Background and aim: Occult hepatitis B virus (HBV) infection is defined by the detectable serum HBV–DNA in HBV surface antigen-negative patients. This retrospective study aims to evaluate the ...