Genetic characteristics of highly pathogenic H5N8 avian influenza viruses isolated from migratory wild birds in South Korea during 2014-2015

Genetic characteristics of highly pathogenic H5N8 avian influenza viruses isolated from migratory... The continuous worldwide spread of highly pathogenic avian influenza (HPAI) H5N8 viruses among wild birds and poultry is a potential threat to public health. In the present study, we investigated the genetic characteristics of recent H5N8 viruses continuously isolated from migratory birds over two winters (2013-2014 and 2014-2015) in South Korea. Genetic and phylogenetic analysis demonstrated that the 2014-2015 HPAI H5N8 viruses are closely related to the 2013-2014 viruses, including virulence markers; however, all eight gene segments of 2014-2015 H5N8 viruses clustered in different phylogenetic branches from 2013-2014 H5N8 viruses, except the A/Em/Korea/W492/2015 virus. The H5N8 viruses of Europe and North America belong to sublineages of the 2013-2014 Korean H5N8 viruses but differ from the 2014-2015 Korean H5N8 viruses. Further hemagglutination inhibition (HI) assay results showed that there were 2-to-4 fold differences in HI titer between 2013-2014 and 2014-2015 H5N8 viruses. Taken together, our results suggested that the 2014-2015 Korean H5N8 viruses were genetically and serologically different from those of 2013-2014 winter season H5N8 viruses, including those from Europe and North America. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Genetic characteristics of highly pathogenic H5N8 avian influenza viruses isolated from migratory wild birds in South Korea during 2014-2015

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Publisher
Springer Vienna
Copyright
Copyright © 2016 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-016-2979-4
Publisher site
See Article on Publisher Site

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