Chapter 94

Acute Viral Hepatitis

Marc G. Ghany

Marc G. Ghany

National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA

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T. Jake Liang

T. Jake Liang

National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA

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First published: 27 November 2015

Summary

Five hepatotrophic viruses designated A through E commonly cause acute hepatitis. Transmission is primarily via the fecal-oral route for hepatitis A and E in contrast to parental routes for B, C and D. The clinical presentation ranges in severity from an asymptomatic illness to fulminant hepatitis. Outcome and severity of the hepatitis is dependent on a variety of host and viral factors. Recovery is the general rule but hepatitis B, C, D and to a lesser extent HEV can progress to chronicity. Diagnosis is based on specific serological and nucleic acid testing. Treatment is usually not indicated with the possible exception of acute hepatitis C, and in some cases of acute hepatitis B that have a prolonged course. Effective vaccines are available for hepatitis A and B and are recommended as part of childhood vaccination and for susceptible adults. A vaccine was recently developed for hepatitis E but its use has not been clearly defined.

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