A case of reassortant seasonal influenza A(H1N2) virus, Denmark, April 2019

Euro Surveill. 2019 Jul;24(27):1900406. doi: 10.2807/1560-7917.ES.2019.24.27.1900406.

Abstract

A reassortant influenza A subtype H1N2 virus with gene segments from seasonal A(H1N1)pdm09 virus (HA, MP, NP, NS, PA, PB1 and PB2) and seasonal A(H3N2) virus (NA) was identified in a routine surveillance sample in Denmark. The patient recovered fully. This is the second reassortant influenza A(H1N2) virus identified in Europe in the 2018/19 influenza season, with the first case being detected December 2018 in Sweden.

Keywords: H1N1; H1N2; H3N2; influenza; influenza virus; reassortant; reassortment; seasonal; surveillance.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Denmark
  • Female
  • Genome, Viral
  • Genotype
  • Humans
  • Influenza A Virus, H1N2 Subtype / genetics
  • Influenza A Virus, H1N2 Subtype / isolation & purification*
  • Influenza A Virus, H3N2 Subtype / genetics
  • Influenza A Virus, H3N2 Subtype / isolation & purification*
  • Influenza, Human / diagnosis*
  • Neuraminidase / genetics
  • Phylogeny
  • Reassortant Viruses / genetics
  • Reassortant Viruses / isolation & purification*
  • Reverse Transcriptase Polymerase Chain Reaction
  • Sentinel Surveillance

Substances

  • Neuraminidase