Skip directly to local search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home

Volume 11, Number 10—October 2005

Research

Mallards and Highly Pathogenic Avian Influenza Ancestral Viruses, Northern Europe

Vincent J. Munster*, Anders Wallensten†‡, Chantal Baas*, Guus F. Rimmelzwaan*, Martin Schutten*, Björn Olsen§¶, Albert D.M.E. Osterhaus*, and Ron A.M. Fouchier*Comments to Author 
Author affiliations: *Erasmus Medical Center, Rotterdam, the Netherlands; †Smedby Health Center, Kalmar, Sweden; ‡Linköping University, Linköping, Sweden; §Umea University, Umea, Sweden; ¶Kalmar University, Kalmar, Sweden

Main Article

Figure 2

Phylogenetic trees of hemagglutinin H7 sequences. A) Phylogenetic tree based on the amino acid sequence distance matrix for the HA1 open reading frames of all H7 sequences available from public databases. The scale bar represents ≈10% of amino acid changes between close relatives. *Represents the locations of the Mallard influenza A virus isolates. B) DNA maximum likelihood tree for the European highly pathogenic avian influenza viruses and the low pathogenic avian influenza H7 influenza A virus

Figure 2. Phylogenetic trees of hemagglutinin H7 sequences. A) Phylogenetic tree based on the amino acid sequence distance matrix for the HA1 open reading frames of all H7 sequences available from public databases. The scale bar represents ≈10% of amino acid changes between close relatives. *Represents the locations of the Mallard influenza A virus isolates. B) DNA maximum likelihood tree for the European highly pathogenic avian influenza viruses and the low pathogenic avian influenza H7 influenza A viruses isolated from migrating Mallards by using A/FPV/Dutch/27 as outgroup. The scale bar represents 10% of nucleotide changes between close relatives.

Main Article

Top of Page

 

Past Issues

Select a Past Issue:

Art in Science - Selections from Emerging Infectious Diseases
Now available for order



CDC 24/7 – Saving Lives, Protecting People, Saving Money. Learn More About How CDC Works For You…

USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO