Reoccurrence of Avian Influenza A(H5N2) Virus Clade 2.3.4.4 in Wild Birds, Alaska, USA, 2016

Emerg Infect Dis. 2017 Feb;23(2):365-367. doi: 10.3201/eid2302.161616.

Abstract

We report reoccurrence of highly pathogenic avian influenza A(H5N2) virus clade 2.3.4.4 in a wild mallard in Alaska, USA, in August 2016. Identification of this virus in a migratory species confirms low-frequency persistence in North America and the potential for re-dissemination of the virus during the 2016 fall migration.

Keywords: Alaska; H5N2 subtype; North America; United States; clade 2.3.4.4; highly pathogenic avian influenza virus; influenza; influenza A(H5N2) virus; phylogenetic analysis; viruses; waterfowl; wild birds; zoonoses.

Publication types

  • Historical Article

MeSH terms

  • Alaska / epidemiology
  • Animals
  • Animals, Wild*
  • Birds / virology*
  • Genotype
  • History, 21st Century
  • Influenza A Virus, H5N2 Subtype / classification*
  • Influenza A Virus, H5N2 Subtype / genetics*
  • Influenza in Birds / epidemiology*
  • Influenza in Birds / history
  • Influenza in Birds / virology*
  • Phylogeny
  • Public Health Surveillance