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Erschienen in: Archives of Virology 8/2011

01.08.2011 | Original Article

A nationwide survey of hepatitis E virus (HEV) infection in wild boars in Japan: identification of boar HEV strains of genotypes 3 and 4 and unrecognized genotypes

verfasst von: Yukihiro Sato, Hiroyuki Sato, Keisuke Naka, Satoshi Furuya, Haruhisa Tsukiji, Koji Kitagawa, Yoshihide Sonoda, Takanobu Usui, Hirotsugu Sakamoto, Sumi Yoshino, Yuko Shimizu, Masaharu Takahashi, Shigeo Nagashima, Jirintai, Tsutomu Nishizawa, Hiroaki Okamoto

Erschienen in: Archives of Virology | Ausgabe 8/2011

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Abstract

To investigate the nationwide prevalence of hepatitis E virus (HEV) infection and to characterize HEV genomes among Japanese wild boars (Sus scrofa leucomystax), 578 boars captured in 25 prefectures from 2003 to 2010 were studied. Anti-HEV IgG was detected in 8.1%, and HEV RNA in 3.3% of boars. Among the 19 boar HEV isolates obtained from infected boars, 14 isolates (74%) were classified as genotype 3, 4 isolates (21%) as genotype 4, and the remaining isolate (wbJOY_06) was distantly related to all known HEV isolates of genotypes 1-4, differing by 18.4-25.0% and 18.0-24.3% within the 412-nucleotide sequence of ORF1 and ORF2, respectively. A genotype 4 boar HEV isolate (wbJGF_08-1) obtained herein shared 98.6% identity over the entire genome with a human HEV isolate obtained from a patient who developed acute hepatitis after consuming undercooked wild boar meat, suggesting that wild boars are also reservoirs for genotype 4 HEV in humans.
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Metadaten
Titel
A nationwide survey of hepatitis E virus (HEV) infection in wild boars in Japan: identification of boar HEV strains of genotypes 3 and 4 and unrecognized genotypes
verfasst von
Yukihiro Sato
Hiroyuki Sato
Keisuke Naka
Satoshi Furuya
Haruhisa Tsukiji
Koji Kitagawa
Yoshihide Sonoda
Takanobu Usui
Hirotsugu Sakamoto
Sumi Yoshino
Yuko Shimizu
Masaharu Takahashi
Shigeo Nagashima
Jirintai
Tsutomu Nishizawa
Hiroaki Okamoto
Publikationsdatum
01.08.2011
Verlag
Springer Vienna
Erschienen in
Archives of Virology / Ausgabe 8/2011
Print ISSN: 0304-8608
Elektronische ISSN: 1432-8798
DOI
https://doi.org/10.1007/s00705-011-0988-x

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