Highly Pathogenic Avian Influenza A(H5N8) Clade 2.3.4.4b Viruses in Satellite-Tracked Wild Ducks, Ningxia, China, 2020

Emerg Infect Dis. 2022 May;28(5):1039-1042. doi: 10.3201/eid2805.211580.

Abstract

During October 2020, we identified 13 highly pathogenic avian influenza A(H5N8) clade 2.3.4.4b viruses from wild ducks in Ningxia, China. These viruses were genetically related to H5N8 viruses circulating mainly in poultry in Europe during early 2020. We also determined movements of H5N8 virus‒infected wild ducks and evidence for spreading of viruses.

Keywords: China; H5N8; Ningxia; birds; clade 2.3.4.4b; epidemic; highly pathogenic avian influenza A(H5N8) viruses; influenza; influenza virus; phylogeny; public health; respiratory infections; satellite tracked; subtype; viruses; wild ducks; zoonoses.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Animals, Wild
  • Birds
  • Ducks
  • Humans
  • Influenza A Virus, H5N8 Subtype* / genetics
  • Influenza in Birds* / epidemiology
  • Influenza, Human*
  • Phylogeny
  • Poultry Diseases*