Hepatitis Delta Virus - HDV

Hepatitis delta virus (HDV) is a subviral agent that is dependent on the hepatitis B virus (HBV) surface antigen (HBsAg) for its life cycle. HDV infection cannot occur in the absence of HBV, but occurs as an acute coinfection with HBV or as a superinfection. Acute infection will cause an early increase in alanine aminotransferase (ALT).

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Last Update: October 2019