Reassortant Influenza A(H1N1)pdm09 Virus in Elderly Woman, Denmark, January 2021

Emerg Infect Dis. 2021 Dec;27(12):3202-3205. doi: 10.3201/eid2712.211361.

Abstract

A case of human infection with influenza A(H1N1)pdm09 virus containing a nonstructural gene highly similar to Eurasian avian-like H1Nx swine influenza virus was detected in Denmark in January 2021. We describe the clinical case and report testing results of the genetic and antigenic characterizations of the virus.

Keywords: Denmark; H1N1; Orthomyxoviridae; influenza; influenza A(H1N1)pdm09; pandemic; respiratory infections; swine flu; viral zoonoses; viruses; zoonoses.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Animals
  • Denmark / epidemiology
  • Humans
  • Influenza A Virus, H1N1 Subtype* / genetics
  • Influenza, Human* / diagnosis
  • Influenza, Human* / epidemiology
  • Orthomyxoviridae Infections*
  • Reassortant Viruses / genetics
  • Swine
  • Swine Diseases*