Hepatitis G Virus — A True Hepatitis Virus or an Accidental Tourist?

Abstract
Over the past 30 years, five hepatitis viruses have been identified and named A, B, C, D, and E.1 Hepatitis A and E viruses are transmitted enterically and induce acute hepatitis, but they rarely cause chronic hepatitis. Hepatitis B virus (HBV) and hepatitis C virus (HCV), by contrast, are primarily blood-borne, cause acute as well as chronic hepatitis, and can lead to cirrhosis and hepatocellular carcinoma. Hepatitis D, or delta virus, is exceptional in that it is dependent on HBV and can modify the disease associated with that virus.Acute or chronic hepatitis in which both nonviral causes and infection . . .