Evidence of H10N8 influenza virus infection among swine in southern China and its infectivity and transmissibility in swine

Infection with a novel H10N8 influenza virus in humans was first described in China in December 2013, which raised concerns related to public health. This novel virus was subsequently confirmed to have originated from a live poultry market. However, whether this virus can infect other mammals remain...

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Veröffentlicht in:Emerging microbes & infections 2020-01, Vol.9 (1), p.88-94
Hauptverfasser: Fu, Xinliang, Huang, Yunmao, Fang, Bo, Liu, Yixing, Cai, Mengkai, Zhong, Ruting, Huang, Junming, Wenbao, Qi, Tian, Yunbo, Zhang, Guihong
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container_title Emerging microbes & infections
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creator Fu, Xinliang
Huang, Yunmao
Fang, Bo
Liu, Yixing
Cai, Mengkai
Zhong, Ruting
Huang, Junming
Wenbao, Qi
Tian, Yunbo
Zhang, Guihong
description Infection with a novel H10N8 influenza virus in humans was first described in China in December 2013, which raised concerns related to public health. This novel virus was subsequently confirmed to have originated from a live poultry market. However, whether this virus can infect other mammals remains unclear. In the present study, antibody specific for H10N8 influenza virus was detected in swine herds in southern China during serological monitoring for swine influenza virus. The pathogenicity and transmissibility of this H10N8 influenza virus to swine was examined. The results showed that swine are susceptible to infection with human-origin H10N8 influenza virus, which causes viral shedding, severe tissue lesions, and seroconversion, while infection with avian-origin H10N8 influenza virus causes only seroconversion and no viral shedding. Importantly, human-origin H10N8 influenza virus can inefficiently be transmitted between swine and cause seroconversion through direct contact. This study provides a new perspective regarding the ecology of H10N8 influenza virus and highlights the importance of epidemiological monitoring of the H10N8 influenza virus in different animal species, which will be helpful for preventing and controlling future infections by this virus.
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infections</jtitle><addtitle>Emerg Microbes Infect</addtitle><date>2020-01-01</date><risdate>2020</risdate><volume>9</volume><issue>1</issue><spage>88</spage><epage>94</epage><pages>88-94</pages><issn>2222-1751</issn><eissn>2222-1751</eissn><abstract>Infection with a novel H10N8 influenza virus in humans was first described in China in December 2013, which raised concerns related to public health. This novel virus was subsequently confirmed to have originated from a live poultry market. However, whether this virus can infect other mammals remains unclear. In the present study, antibody specific for H10N8 influenza virus was detected in swine herds in southern China during serological monitoring for swine influenza virus. The pathogenicity and transmissibility of this H10N8 influenza virus to swine was examined. The results showed that swine are susceptible to infection with human-origin H10N8 influenza virus, which causes viral shedding, severe tissue lesions, and seroconversion, while infection with avian-origin H10N8 influenza virus causes only seroconversion and no viral shedding. Importantly, human-origin H10N8 influenza virus can inefficiently be transmitted between swine and cause seroconversion through direct contact. This study provides a new perspective regarding the ecology of H10N8 influenza virus and highlights the importance of epidemiological monitoring of the H10N8 influenza virus in different animal species, which will be helpful for preventing and controlling future infections by this virus.</abstract><cop>United States</cop><pub>Taylor &amp; Francis</pub><pmid>31900060</pmid><doi>10.1080/22221751.2019.1708811</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-7741-7387</orcidid><oa>free_for_read</oa></addata></record>
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subjects Animals
Antibodies, Viral - immunology
China
H10N8
Humans
Infections
infectivity
Influenza
Influenza A Virus, H10N8 Subtype - pathogenicity
Influenza A Virus, H10N8 Subtype - physiology
influenza virus
Lung - pathology
Original
Orthomyxoviridae Infections - immunology
Orthomyxoviridae Infections - pathology
Orthomyxoviridae Infections - transmission
Orthomyxoviridae Infections - veterinary
pathogenicity
Sus scrofa
Swine
Swine Diseases - immunology
Swine Diseases - pathology
Swine Diseases - transmission
Swine Diseases - virology
Swine flu
transmissibility
Zoonoses
title Evidence of H10N8 influenza virus infection among swine in southern China and its infectivity and transmissibility in swine
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