<i>Chirohepevirus</i> from Bats: Insights into Hepatitis E Virus Diversity and Evolution

Homologs of the human hepatitis E virus (HEV) have been identified in more than a dozen animal species. Some of them have been evidenced to cross species barriers and infect humans. Zoonotic HEV infections cause chronic liver diseases as well as a broad range of extrahepatic manifestations, which in...

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Main Authors: Bo Wang, Xing-Lou Yang
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/14/5/905
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author Bo Wang
Xing-Lou Yang
author_facet Bo Wang
Xing-Lou Yang
author_sort Bo Wang
collection DOAJ
description Homologs of the human hepatitis E virus (HEV) have been identified in more than a dozen animal species. Some of them have been evidenced to cross species barriers and infect humans. Zoonotic HEV infections cause chronic liver diseases as well as a broad range of extrahepatic manifestations, which increasingly become significant clinical problems. Bats comprise approximately one-fifth of all named mammal species and are unique in their distinct immune response to viral infection. Most importantly, they are natural reservoirs of several highly pathogenic viruses, which have induced severe human diseases. Since the first discovery of HEV-related viruses in bats in 2012, multiple genetically divergent HEV variants have been reported in a total of 12 bat species over the last decade, which markedly expanded the host range of the HEV family and shed light on the evolutionary origin of human HEV. Meanwhile, bat-borne HEV also raised critical public health concerns about its zoonotic potential. Bat HEV strains resemble genomic features but exhibit considerable heterogeneity. Due to the close evolutionary relationships, bat HEV altogether has been recently assigned to an independent genus, <i>Chirohepevirus</i>. This review focuses on the current state of bat HEV and provides novel insights into HEV genetic diversity and molecular evolution.
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spelling doaj.art-52952b2c38e24f4fa1fdf6feb728b3e62023-11-23T13:30:01ZengMDPI AGViruses1999-49152022-04-0114590510.3390/v14050905<i>Chirohepevirus</i> from Bats: Insights into Hepatitis E Virus Diversity and EvolutionBo Wang0Xing-Lou Yang1Department of Biomedical Sciences and Pathobiology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USAKunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650023, ChinaHomologs of the human hepatitis E virus (HEV) have been identified in more than a dozen animal species. Some of them have been evidenced to cross species barriers and infect humans. Zoonotic HEV infections cause chronic liver diseases as well as a broad range of extrahepatic manifestations, which increasingly become significant clinical problems. Bats comprise approximately one-fifth of all named mammal species and are unique in their distinct immune response to viral infection. Most importantly, they are natural reservoirs of several highly pathogenic viruses, which have induced severe human diseases. Since the first discovery of HEV-related viruses in bats in 2012, multiple genetically divergent HEV variants have been reported in a total of 12 bat species over the last decade, which markedly expanded the host range of the HEV family and shed light on the evolutionary origin of human HEV. Meanwhile, bat-borne HEV also raised critical public health concerns about its zoonotic potential. Bat HEV strains resemble genomic features but exhibit considerable heterogeneity. Due to the close evolutionary relationships, bat HEV altogether has been recently assigned to an independent genus, <i>Chirohepevirus</i>. This review focuses on the current state of bat HEV and provides novel insights into HEV genetic diversity and molecular evolution.https://www.mdpi.com/1999-4915/14/5/905hepatitis E virus<i>Chirohepevirus</i>HEV-Dbatsgenetic diversitygenomic catheterization
spellingShingle Bo Wang
Xing-Lou Yang
<i>Chirohepevirus</i> from Bats: Insights into Hepatitis E Virus Diversity and Evolution
Viruses
hepatitis E virus
<i>Chirohepevirus</i>
HEV-D
bats
genetic diversity
genomic catheterization
title <i>Chirohepevirus</i> from Bats: Insights into Hepatitis E Virus Diversity and Evolution
title_full <i>Chirohepevirus</i> from Bats: Insights into Hepatitis E Virus Diversity and Evolution
title_fullStr <i>Chirohepevirus</i> from Bats: Insights into Hepatitis E Virus Diversity and Evolution
title_full_unstemmed <i>Chirohepevirus</i> from Bats: Insights into Hepatitis E Virus Diversity and Evolution
title_short <i>Chirohepevirus</i> from Bats: Insights into Hepatitis E Virus Diversity and Evolution
title_sort i chirohepevirus i from bats insights into hepatitis e virus diversity and evolution
topic hepatitis E virus
<i>Chirohepevirus</i>
HEV-D
bats
genetic diversity
genomic catheterization
url https://www.mdpi.com/1999-4915/14/5/905
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AT xinglouyang ichirohepevirusifrombatsinsightsintohepatitisevirusdiversityandevolution