Human H7N9 influenza A viruses replicate in swine respiratory tissue explants

J Virol. 2013 Nov;87(22):12496-8. doi: 10.1128/JVI.02499-13. Epub 2013 Sep 11.

Abstract

Recently, novel H7N9 influenza viruses have caused an unprecedented outbreak in humans. Pigs are an important intermediate host for influenza; thus, we assessed the replication ability of three human H7N9 viruses (A/Anhui/1/2013, A/Shanghai/1/2013, A/Shanghai/2/2013) in swine tissue explants. All viruses tested replicated efficiently in explants from tracheas and bronchi, with limited replication in alveolar cells. Swine respiratory tissue explants can serve as an efficient model for screening replication potential of newly emerging H7N9 viruses.

Publication types

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

MeSH terms

  • Animals
  • Bronchi / metabolism
  • Bronchi / virology*
  • Humans
  • Immunoenzyme Techniques
  • Influenza A Virus, H7N9 Subtype / pathogenicity*
  • Orthomyxoviridae Infections / metabolism
  • Orthomyxoviridae Infections / virology*
  • Pulmonary Alveoli / metabolism
  • Pulmonary Alveoli / virology*
  • Swine
  • Swine, Miniature
  • Tissue Culture Techniques
  • Trachea / metabolism
  • Trachea / virology*