Detection of Novel Reassortant Influenza A (H3N2) and H1N1 2009 Pandemic Viruses in Swine in Hanoi, Vietnam

Zoonoses Public Health. 2015 Sep;62(6):429-34. doi: 10.1111/zph.12164. Epub 2014 Nov 1.

Abstract

From May to September 2013, monthly samples were collected from swine in a Vietnamese slaughterhouse for influenza virus isolation and serological testing. A(H1N1)pdm09 viruses and a novel H3N2 originating from reassortment between A(H1N1)pdm09 and novel viruses of the North American triple reassortant lineage were isolated. Serological results showed low seroprevalence for the novel H3N2 virus and higher seroprevalence for A(H1N1)pdm09 viruses. In addition, serology suggested that other swine influenza viruses are also circulating in Vietnamese swine.

Keywords: South-East Asia; Swine influenza; Vietnam; pandemic influenza; reassortant virus.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antibodies, Viral / blood
  • Humans
  • Influenza A Virus, H1N1 Subtype* / genetics
  • Influenza A Virus, H1N1 Subtype* / immunology
  • Influenza A Virus, H1N1 Subtype* / isolation & purification
  • Influenza A Virus, H3N2 Subtype* / genetics
  • Influenza A Virus, H3N2 Subtype* / immunology
  • Influenza A Virus, H3N2 Subtype* / isolation & purification
  • Influenza, Human / epidemiology*
  • Influenza, Human / transmission*
  • Orthomyxoviridae Infections / epidemiology
  • Orthomyxoviridae Infections / veterinary*
  • Pandemics
  • Reassortant Viruses* / genetics
  • Reassortant Viruses* / immunology
  • Reassortant Viruses* / isolation & purification
  • Reverse Transcriptase Polymerase Chain Reaction
  • Seroepidemiologic Studies
  • Swine
  • Swine Diseases / epidemiology
  • Swine Diseases / virology*
  • Vietnam / epidemiology

Substances

  • Antibodies, Viral