Virus persistence in pig herds led to successive reassortment events between swine and human influenza A viruses, resulting in the emergence of a novel triple-reassortant swine influenza virus - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Veterinary Research Année : 2019

Virus persistence in pig herds led to successive reassortment events between swine and human influenza A viruses, resulting in the emergence of a novel triple-reassortant swine influenza virus

Emmanuel Garin
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Résumé

This report describes the detection of a triple reassortant swine influenza A virus of H1avN2 subtype. It evolved from an avian-like swine H1avN1 that first acquired the N2 segment from a seasonal H3N2, then the M segment from a 2009 pandemic H1N1, in two reassortments estimated to have occurred 10 years apart. This study illustrates how recurrent influenza infections increase the co-infection risk and facilitate evolutionary jumps by successive gene exchanges. It recalls the importance of appropriate biosecurity measures inside holdings to limit virus persistence and interspecies transmissions, which both contribute to the emergence of new potentially zoonotic viruses.
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Origine : Publication financée par une institution
Origine : Publication financée par une institution
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Dates et versions

hal-02314839 , version 1 (14-10-2019)

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Amélie Chastagner, Emilie Bonin, Christelle Fablet, Stéphane Quéguiner, Edouard Hirchaud, et al.. Virus persistence in pig herds led to successive reassortment events between swine and human influenza A viruses, resulting in the emergence of a novel triple-reassortant swine influenza virus. Veterinary Research, 2019, 50 (1), pp.77. ⟨10.1186/s13567-019-0699-y⟩. ⟨hal-02314839⟩
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