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Evidence of reassortment of pandemic H1N1 influenza virus in swine in Argentina: are we facing the expansion of potential epicenters of influenza emergence?

Authors

  • Ariel Pereda,

    1. Laboratorio Aves y Porcinos, Instituto de Virologia CICVyA – Instituto Nacional de Technologia Agropecuaria (INTA), Buenos Aires, Argentina.
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  • Agustina Rimondi,

    1. Laboratorio Aves y Porcinos, Instituto de Virologia CICVyA – Instituto Nacional de Technologia Agropecuaria (INTA), Buenos Aires, Argentina.
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  • Javier Cappuccio,

    1. Cátedra de Patología Especial, Facultad de Cs. Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina.
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  • Ramon Sanguinetti,

    1. Servicio Nacional de Sanidad y Calidad Agroalimentaria, Buenos Aires, Argentina.
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  • Matthew Angel,

    1. Virginia-Maryland Regional College of Veterinary Medicine and Department of Veterinary Medicine, University of Maryland, College Park, MD, USA.
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  • Jianqiang Ye,

    1. Virginia-Maryland Regional College of Veterinary Medicine and Department of Veterinary Medicine, University of Maryland, College Park, MD, USA.
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  • Troy Sutton,

    1. Virginia-Maryland Regional College of Veterinary Medicine and Department of Veterinary Medicine, University of Maryland, College Park, MD, USA.
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  • Marina Dibárbora,

    1. Laboratorio Aves y Porcinos, Instituto de Virologia CICVyA – Instituto Nacional de Technologia Agropecuaria (INTA), Buenos Aires, Argentina.
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  • Valeria Olivera,

    1. Laboratorio Aves y Porcinos, Instituto de Virologia CICVyA – Instituto Nacional de Technologia Agropecuaria (INTA), Buenos Aires, Argentina.
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  • Maria I. Craig,

    1. Laboratorio Aves y Porcinos, Instituto de Virologia CICVyA – Instituto Nacional de Technologia Agropecuaria (INTA), Buenos Aires, Argentina.
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  • Maria Quiroga,

    1. Cátedra de Patología Especial, Facultad de Cs. Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina.
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  • Mariana Machuca,

    1. Cátedra de Patología Especial, Facultad de Cs. Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina.
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  • Andrea Ferrero,

    1. Virginia-Maryland Regional College of Veterinary Medicine and Department of Veterinary Medicine, University of Maryland, College Park, MD, USA.
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  • Carlos Perfumo,

    1. Cátedra de Patología Especial, Facultad de Cs. Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina.
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  • Daniel R. Perez

    1. Virginia-Maryland Regional College of Veterinary Medicine and Department of Veterinary Medicine, University of Maryland, College Park, MD, USA.
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Ariel Pereda, Laboratorio Aves y Porcinos, Instituto de Virologia CICVyA – Instituto Nacional de Technologia Agropecuaria (INTA), CC25 (1712) Castelar, Buenos Aires, Argentina. E-mail: apereda@cnia.inta.gov.ar

Abstract

Please cite this paper as: Pereda et al. (2011) Evidence of reassortment of pandemic H1N1 influenza virus in swine in Argentina: are we facing the expansion of potential epicenters of influenza emergence? Influenza and Other Respiratory Viruses 5(6), 409–412.

In this report, we describe the occurrence of two novel swine influenza viruses (SIVs) in pigs in Argentina. These viruses are the result of two independent reassortment events between the H1N1 pandemic influenza virus (H1N1pdm) and human-like SIVs, showing the constant evolution of influenza viruses at the human–swine interface and the potential health risk of H1N1pdm as it appears to be maintained in the swine population. It must be noted that because of the lack of information regarding the circulation of SIVs in South America, we cannot discard the possibility that ancestors of the H1N1pdm or other SIVs have been present in this part of the world. More importantly, these findings suggest an ever-expanding geographic range of potential epicenters of influenza emergence with public health risks.

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