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Volume 18, Number 10—October 2012
Research

Spread of Influenza Virus A (H5N1) Clade 2.3.2.1 to Bulgaria in Common Buzzards

Atanaska Marinova-Petkova, Georgi Georgiev, Patrick Seiler, Daniel Darnell, John Franks, Scott Krauss, Richard J. Webby, and Robert G. WebsterComments to Author 
Author affiliations: Regional Diagnostic Laboratory on Avian Influenza and Newcastle Disease in Birds, Varna, Bulgaria (A. Marinova-Petkova); National Diagnostic and Research Veterinary Medical Institute, Sofia, Bulgaria (A. Marinova-Petkova, G. Georgiev); and St. Jude Children’s Research Hospital, Memphis, TN, USA (P. Seiler, D. Darnell, J. Franks, S. Krauss. R.J. Webby, R.G. Webster)

Main Article

Table

Hemagglutination inhibition titers used to compare the antigenicity of influenza A(H5N1) virus strain A/common buzzard/Bulgaria/38WB/2010 with other common strains*

Strain Strain (clade)
A/common magpie/Hong Kong/
5052/2007 (2.3.2.1) A/Muscovy duck/Vietnam/ 1455/2006 (2.3.2) A/duck/Laos/ 3295/2006 (2.3.4) A/Japanese
white-eye/Hong Kong/1038/2006 (2.3.4)
A/common magpie/Hong Kong/5052/2007 160 160 <40 <40
A/duck/Laos/3295/2006 <40 <40 160 80
A/Japanese white-eye/Hong Kong/1038/2006 <40 40 160 320
A/Muscovy duck/Vietnam/1455/2006 80 80 <40 <40
A/common buzzard/Bulgaria/38WB/2010 80 80 <40 <40

*Values represent titers that are the reciprocal of the lowest dilution of ferret antisera that inhibited hemagglutination caused by 4 hemagglutination units of the virus.

Main Article

Page created: September 14, 2012
Page updated: September 14, 2012
Page reviewed: September 14, 2012
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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