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

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

Dong-Hun Lee, Mia K Torchetti, Mary Lea Killian, Thomas J DeLiberto, David E Swayne

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

Dong-Hun Lee et al. Emerg Infect Dis. 2017 Feb.

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.

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Figures

Figure
Figure
Maximum clade credibility phylogeny of concatenated complete genome sequences of avian influenza A(H5N2) virus clade 2.3.4.4 in wild birds, Alaska, USA, 2016. Horizontal bars indicate 95% Bayesian credible intervals for estimates of common ancestry. Bold indicates a genetic cluster that includes A/mallard/Alaska/AH00088535/2016/08/12(H5N2) virus and related viruses. Scale bar indicates years.
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