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Volume 15, Number 7—July 2009
Research

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

Heinrich zu Dohna1Comments to Author , Jinling Li1, Carol J. Cardona, Joy Miller, and Tim E. Carpenter
Author affiliations: University of California School of Veterinary Medicine, Davis, California, USA (H. zu Dohna, J. Li, C.J. Cardona, T.E. Carpenter); National Center for Medical Intelligence, Fort Detrick, Maryland, USA (J. Miller);

Main Article

Figure 1

Possible period of invasion from the old hemisphere to the new hemisphere shown in a schematic tree with 2 isolates from the new and 1 from the old hemisphere.

Figure 1. Possible period of invasion from the old hemisphere to the new hemisphere shown in a schematic tree with 2 isolates from the new and 1 from the old hemisphere.

Main Article

1These authors contributed equally to this article.

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