Six cases of acute hepatitis E occurred within 18 months around Gifu city in Japan, infected with mutually-independent hepatitis E virus strains

Naoki Watanabe; Yoichi Nishigaki; Eiichi Tomita; Kazuaki Takahashi; Tatsunori Nakano; Yusuke Suzuki; Hideki Hayashi; Satoshi Watanabe; Tomohiro Kato; Takafumi Naiki; Masahiro Arai; Shunji Mishiro

doi:10.2957/kanzo.55.713

Six cases of acute hepatitis E occurred within 18 months around Gifu city in Japan, infected with mutually-independent hepatitis E virus strains

Naoki Watanabe, Yoichi Nishigaki, Eiichi Tomita, Kazuaki Takahashi, Tatsunori Nakano, Yusuke Suzuki, Hideki Hayashi, Satoshi Watanabe, Tomohiro Kato, Takafumi Naiki, Masahiro Arai, Shunji Mishiro

Internal Medicine

Research output: Contribution to journal › Article › peer-review

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Abstract

We experienced six cases of hepatitis E within 18 months around Gifu city. The phylogenetic analysis indicated that the 6 hepatitis E virus (HEV) strains were included in different lineages, respectively. One case showed marked symptoms of hepatitis and was infected with a genotype 4 Aichi/Shizuoka strain which is ordinary isolated from wild animal. The case had history of consuming raw pig liver. The fact may indicate that Aichi/Shizuoka strains are confined not only to wild animal but also to pig bred around Gifu city. Other 5 cases had no clear risk factor of acquiring HEV and did not show obvious symptoms of hepatitis. HEV infection may occur more commonly than we think by various HEV lineages from unknown reservoirs.

Original language	English
Pages (from-to)	713-716
Number of pages	4
Journal	Kanzo/Acta Hepatologica Japonica
Volume	55
Issue number	11
DOIs	https://doi.org/10.2957/kanzo.55.713
Publication status	Published - 2014

All Science Journal Classification (ASJC) codes

Hepatology

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Watanabe, N., Nishigaki, Y., Tomita, E., Takahashi, K., Nakano, T., Suzuki, Y., Hayashi, H., Watanabe, S., Kato, T., Naiki, T., Arai, M., & Mishiro, S. (2014). Six cases of acute hepatitis E occurred within 18 months around Gifu city in Japan, infected with mutually-independent hepatitis E virus strains. Kanzo/Acta Hepatologica Japonica, 55(11), 713-716. https://doi.org/10.2957/kanzo.55.713

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title = "Six cases of acute hepatitis E occurred within 18 months around Gifu city in Japan, infected with mutually-independent hepatitis E virus strains",

abstract = "We experienced six cases of hepatitis E within 18 months around Gifu city. The phylogenetic analysis indicated that the 6 hepatitis E virus (HEV) strains were included in different lineages, respectively. One case showed marked symptoms of hepatitis and was infected with a genotype 4 Aichi/Shizuoka strain which is ordinary isolated from wild animal. The case had history of consuming raw pig liver. The fact may indicate that Aichi/Shizuoka strains are confined not only to wild animal but also to pig bred around Gifu city. Other 5 cases had no clear risk factor of acquiring HEV and did not show obvious symptoms of hepatitis. HEV infection may occur more commonly than we think by various HEV lineages from unknown reservoirs.",

keywords = "Gifu city, Hepatitis E virus, Phylogenetic analysis",

author = "Naoki Watanabe and Yoichi Nishigaki and Eiichi Tomita and Kazuaki Takahashi and Tatsunori Nakano and Yusuke Suzuki and Hideki Hayashi and Satoshi Watanabe and Tomohiro Kato and Takafumi Naiki and Masahiro Arai and Shunji Mishiro",

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year = "2014",

doi = "10.2957/kanzo.55.713",

language = "English",

volume = "55",

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Watanabe, N, Nishigaki, Y, Tomita, E, Takahashi, K, Nakano, T, Suzuki, Y, Hayashi, H, Watanabe, S, Kato, T, Naiki, T, Arai, M & Mishiro, S 2014, 'Six cases of acute hepatitis E occurred within 18 months around Gifu city in Japan, infected with mutually-independent hepatitis E virus strains', Kanzo/Acta Hepatologica Japonica, vol. 55, no. 11, pp. 713-716. https://doi.org/10.2957/kanzo.55.713

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T1 - Six cases of acute hepatitis E occurred within 18 months around Gifu city in Japan, infected with mutually-independent hepatitis E virus strains

AU - Watanabe, Naoki

AU - Nishigaki, Yoichi

AU - Tomita, Eiichi

AU - Takahashi, Kazuaki

AU - Nakano, Tatsunori

AU - Suzuki, Yusuke

AU - Hayashi, Hideki

AU - Watanabe, Satoshi

AU - Kato, Tomohiro

AU - Naiki, Takafumi

AU - Arai, Masahiro

AU - Mishiro, Shunji

PY - 2014

Y1 - 2014

N2 - We experienced six cases of hepatitis E within 18 months around Gifu city. The phylogenetic analysis indicated that the 6 hepatitis E virus (HEV) strains were included in different lineages, respectively. One case showed marked symptoms of hepatitis and was infected with a genotype 4 Aichi/Shizuoka strain which is ordinary isolated from wild animal. The case had history of consuming raw pig liver. The fact may indicate that Aichi/Shizuoka strains are confined not only to wild animal but also to pig bred around Gifu city. Other 5 cases had no clear risk factor of acquiring HEV and did not show obvious symptoms of hepatitis. HEV infection may occur more commonly than we think by various HEV lineages from unknown reservoirs.

AB - We experienced six cases of hepatitis E within 18 months around Gifu city. The phylogenetic analysis indicated that the 6 hepatitis E virus (HEV) strains were included in different lineages, respectively. One case showed marked symptoms of hepatitis and was infected with a genotype 4 Aichi/Shizuoka strain which is ordinary isolated from wild animal. The case had history of consuming raw pig liver. The fact may indicate that Aichi/Shizuoka strains are confined not only to wild animal but also to pig bred around Gifu city. Other 5 cases had no clear risk factor of acquiring HEV and did not show obvious symptoms of hepatitis. HEV infection may occur more commonly than we think by various HEV lineages from unknown reservoirs.

KW - Gifu city

KW - Hepatitis E virus

KW - Phylogenetic analysis

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Six cases of acute hepatitis E occurred within 18 months around Gifu city in Japan, infected with mutually-independent hepatitis E virus strains

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