H2N2V1, Main, Exploration, bibRecord, 001F44

Interspecies Transmission and Reassortment of Influenza A Viruses in Pigs and Turkeys in the United States

Identifieur interne : 001F44 ( Main/Exploration ); précédent : 001F43; suivant : 001F45

Interspecies Transmission and Reassortment of Influenza A Viruses in Pigs and Turkeys in the United States

Auteurs : Stephen M. Wright [États-Unis] ; Yoshihiro Kawaoka [États-Unis] ; Gerold B. Sharp [États-Unis] ; Dennis A. Senne [États-Unis] ; Robert G. Webster [États-Unis]

Source :

American Journal of Epidemiology [ 0002-9262 ] ; 1992.

RBID : ISTEX:BFD8240DF9E8629ED1392654A42836BEBC636D0D

Abstract

Genetic reassortrnent between influenza A viruses in humans and in animals and birds has been implicated in the appearance of new pandemics of human influenza. To determine whether such reassortment has occurred in the United States, the authors compared the genetic origins of gene segments of 73 swine influenza virus isolates (1976–1990), representing 11 states, and 11 turkey virus isolates (1980–1989), representing eight states. The host origin of gene segments encoding the internal proteins of H1 N1 swine and turkey influenza viruses was identified by developing a dot-blot assay. All gene segments of swine influenza viruses were characteristic of influenza virus genes from that species, indicating that pigs may not be frequent participants in interspecies genetic exchange and reassortrnent of influenza viruses in the United States. In contrast, 73% of the turkey influenza virus isolates contained genes of swine origin. One turkey isolate was a reassortant having three genes characteristic of avian influenza virus and three of swine origin. These findings document a high degree of genetic exchange and reassortment of influenza A viruses in domestic turkeys in the United States. The molecular biologic techniques used by the authors should aid future epidemiologic studies of influenza pandemics.

Url:

https://api.istex.fr/ark:/67375/HXZ-W9W9LWHB-T/fulltext.pdf

DOI: 10.1093/oxfordjournals.aje.a116522

Affiliations:

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Le document en format XML

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<front><div type="abstract">Genetic reassortrnent between influenza A viruses in humans and in animals and birds has been implicated in the appearance of new pandemics of human influenza. To determine whether such reassortment has occurred in the United States, the authors compared the genetic origins of gene segments of 73 swine influenza virus isolates (1976–1990), representing 11 states, and 11 turkey virus isolates (1980–1989), representing eight states. The host origin of gene segments encoding the internal proteins of H1 N1 swine and turkey influenza viruses was identified by developing a dot-blot assay. All gene segments of swine influenza viruses were characteristic of influenza virus genes from that species, indicating that pigs may not be frequent participants in interspecies genetic exchange and reassortrnent of influenza viruses in the United States. In contrast, 73% of the turkey influenza virus isolates contained genes of swine origin. One turkey isolate was a reassortant having three genes characteristic of avian influenza virus and three of swine origin. These findings document a high degree of genetic exchange and reassortment of influenza A viruses in domestic turkeys in the United States. The molecular biologic techniques used by the authors should aid future epidemiologic studies of influenza pandemics.</div>
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Interspecies Transmission and Reassortment of Influenza A Viruses in Pigs and Turkeys in the United States

Interspecies Transmission and Reassortment of Influenza A Viruses in Pigs and Turkeys in the United States

Source :

Abstract

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Le document en format XML

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Pour mettre un lien sur cette page dans le réseau Wicri