Overview of Hepatitis virus Virus Virus group Nucleic Mode of Severity acid infection (chronicity HAV Enterovirus RNA Fecal-oral +(acute) 72(heptoviru HBV hepadnavirus DNA Percutaneous; ++(chroni Permucosal HCV Flavivirus RNA Blood(transfuse on-associated)(chronic B-dependent RNA blood small virus (chronic) HEV Calicivirus RNA Fecal-oral +(acute) HGV ? RNA BloodOverview of Hepatitis Virus Virus Virus group Nucleic acid Mode of infection Severity (chronicit y) HAV Enterovirus 72(heptoviru s) RNA Fecal-oral +(acute) HBV hepadnaviru s DNA Percutaneous; Permucosal ++(chroni c) HCV Flavivirus RNA Blood(transfusi on-associated) + (chronic) HDV B-dependent small virus RNA blood + (chronic) HEV Calicivirus RNA Fecal-oral +(acute) HGV ? RNA Blood ?