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Volume 24, Number 10—October 2018
Research Letter

Introduction of Eurasian-Origin Influenza A(H8N4) Virus into North America by Migratory Birds

Andrew M. RameyComments to Author , Andrew B. Reeves, Tyrone Donnelly, Rebecca L. Poulson, and David E. Stallknecht
Author affiliations: US Geological Survey Alaska Science Center, Anchorage, Alaska, USA (A.M. Ramey, A.B. Reeves, T. Donnelly); University of Georgia, Athens, Georgia, USA (R.L. Poulson, D.E. Stallknecht)

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Figure

Maximum-likelihood phylogenetic trees showing inferred relationships among nucleotide sequences for the complete coding regions of gene segments for influenza A virus strain A/northern pintail/Alaska/UGAI16–3997/2016(H8N4) (white circle indicated with an arrow) and reference sequences from viruses isolated from birds in Eurasia (black circles) and North America (white circles). Bootstrap support values for continentally affiliated clades are shown. Phylogenetic trees with complete strain names a

Figure. Maximum-likelihood phylogenetic trees showing inferred relationships among nucleotide sequences for the complete coding regions of gene segments for influenza A virus strain A/northern pintail/Alaska/UGAI16–3997/2016(H8N4) (white circle indicated with an arrow) and reference sequences from viruses isolated from birds in Eurasia (black circles) and North America (white circles). Bootstrap support values for continentally affiliated clades are shown. Phylogenetic trees with complete strain names as tip labels are provided in the online Technical Appendix Figure (https://wwwnc.cdc.gov/EID/article/24/10/18-0447-Techap1.pdf). H, hemagglutinin; M, matrix; N, neuraminidase; NP, nucleoprotein; NS, nonstructural; PA, polymerase acidic; PB, polymerase basic.

Main Article

Page created: September 16, 2018
Page updated: September 16, 2018
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