Invasions by Eurasian Avian Influenza Virus H6 Genes and Replacement of Its North American Clade

The spread of highly pathogenic avian influenza virus (AIV) (H5N1) underlines the potential for global AIV movement through birds. The phylogenies of AIV genes from avian hosts usually separate into Eurasian and North American clades, reflecting limited bird migration between the hemispheres. Howeve...

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Main Authors: Heinrich zu Dohna, Jinling Li, Carol J. Cardona, Joy Miller, Tim E. Carpenter
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2009-07-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/15/7/09-0245_article
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author Heinrich zu Dohna
Jinling Li
Carol J. Cardona
Joy Miller
Tim E. Carpenter
author_facet Heinrich zu Dohna
Jinling Li
Carol J. Cardona
Joy Miller
Tim E. Carpenter
author_sort Heinrich zu Dohna
collection DOAJ
description The spread of highly pathogenic avian influenza virus (AIV) (H5N1) underlines the potential for global AIV movement through birds. The phylogenies of AIV genes from avian hosts usually separate into Eurasian and North American clades, reflecting limited bird migration between the hemispheres. However, mounting evidence that some H6 sequences from North America cluster with Eurasian subtype H6 sequences calls the strict hemispheric divide into question. We conducted a comprehensive phylogenetic analysis of the extent and timing of cross-hemisphere movements by the H6 gene. Results suggested that Eurasian H6 subtype has invaded North America several times, with the first invasions occurring 10 years before the first detection of invading isolates. The members of the North American clade decreased from 100% in the 1980s to 20% in the 2000s among H6 isolates from North America. Unraveling the reasons for this large-scale gene movement between hemispheres might identify drivers of global AIV circulation.
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spelling doaj.art-707dcdf2b0f84334a8a5b60c9ebfed972022-12-21T21:58:43ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592009-07-011571040104510.3201/eid1507.090245Invasions by Eurasian Avian Influenza Virus H6 Genes and Replacement of Its North American CladeHeinrich zu DohnaJinling LiCarol J. CardonaJoy MillerTim E. CarpenterThe spread of highly pathogenic avian influenza virus (AIV) (H5N1) underlines the potential for global AIV movement through birds. The phylogenies of AIV genes from avian hosts usually separate into Eurasian and North American clades, reflecting limited bird migration between the hemispheres. However, mounting evidence that some H6 sequences from North America cluster with Eurasian subtype H6 sequences calls the strict hemispheric divide into question. We conducted a comprehensive phylogenetic analysis of the extent and timing of cross-hemisphere movements by the H6 gene. Results suggested that Eurasian H6 subtype has invaded North America several times, with the first invasions occurring 10 years before the first detection of invading isolates. The members of the North American clade decreased from 100% in the 1980s to 20% in the 2000s among H6 isolates from North America. Unraveling the reasons for this large-scale gene movement between hemispheres might identify drivers of global AIV circulation.https://wwwnc.cdc.gov/eid/article/15/7/09-0245_articleH6phylogenyEurasiaNorth Americahemisphereinfluenza
spellingShingle Heinrich zu Dohna
Jinling Li
Carol J. Cardona
Joy Miller
Tim E. Carpenter
Invasions by Eurasian Avian Influenza Virus H6 Genes and Replacement of Its North American Clade
Emerging Infectious Diseases
H6
phylogeny
Eurasia
North America
hemisphere
influenza
title Invasions by Eurasian Avian Influenza Virus H6 Genes and Replacement of Its North American Clade
title_full Invasions by Eurasian Avian Influenza Virus H6 Genes and Replacement of Its North American Clade
title_fullStr Invasions by Eurasian Avian Influenza Virus H6 Genes and Replacement of Its North American Clade
title_full_unstemmed Invasions by Eurasian Avian Influenza Virus H6 Genes and Replacement of Its North American Clade
title_short Invasions by Eurasian Avian Influenza Virus H6 Genes and Replacement of Its North American Clade
title_sort invasions by eurasian avian influenza virus h6 genes and replacement of its north american clade
topic H6
phylogeny
Eurasia
North America
hemisphere
influenza
url https://wwwnc.cdc.gov/eid/article/15/7/09-0245_article
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AT caroljcardona invasionsbyeurasianavianinfluenzavirush6genesandreplacementofitsnorthamericanclade
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