Format

Send to

Choose Destination
See comment in PubMed Commons below
World J Hepatol. 2011 Dec 27;3(12):285-91. doi: 10.4254/wjh.v3.i12.285.

Hepatitis E: Epidemiology and prevention.

Author information

1
Eyasu H Teshale, Dale J Hu, Division of Viral Hepatitis, Centers for Disease Control and Prevention, National Center for HIV, Viral Hepatitis, STD, TB Prevention, Atlanta, GA 30333, United States.

Abstract

Hepatitis E is caused by the hepatitis E virus (HEV), the major etiologic agent of enterically transmitted non-A hepatitis worldwide. HEV is responsible for major outbreaks of acute hepatitis in developing countries, especially in many parts of Africa and Asia. The HEV is a spherical, non-enveloped, single-stranded, positive sense RNA virus that is approximately 32 nm to 34 nm in diameter and is the only member in the family Hepeviridae and genus Hepevirus. There are four distinct genotypes of HEV (genotypes 1-4). While genotype 1 is predominantly associated with large epidemics in developing countries, genotype 3 has recently emerged as a significant pathogen in developed countries. The clinical manifestations and the laboratory abnormalities of hepatitis E are not distinguishable from that caused by other hepatitis viruses. However, high mortality among pregnant women particularly during the third trimester distinguishes HEV from other causes of acute viral hepatitis. Specific etiologic diagnosis among infected cases can be made by serological testing or detection of viral nucleic acid by reverse transcription polymerase chain reaction. Although there are vaccine candidates that had been shown to be safe and efficacious in clinical trials, none are approved currently for use. There is no specific therapy for acute hepatitis E as treatment remains supportive.

KEYWORDS:

Acute viral hepatitis; Epidemiology; Hepatitis E virus; Outbreak; Prevention; Serology

PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Baishideng Publishing Group Inc. Icon for PubMed Central
    Loading ...
    Support Center