Characterization of H9N2 influenza viruses isolated from Dongting Lake wetland in 2007

Characterization of H9N2 influenza viruses isolated from Dongting Lake wetland in 2007 In 2007, a total of eight H9N2 influenza viruses were isolated from the water and fowl feces in Dongting Lake wetland, China. The genomes of the eight viruses were sequenced, and all eight gene segments were subjected to phylogenetic analysis. The results showed that all the isolates belonged to the same genotype, in which the HA, NA and NS gene segments were Chicken/Beijing/94-like; the PB2, PB1, PA and NP gene segments were Chicken/Shanghai/F/98-like; and the M gene was Quail/Hong Kong/G1/97-like. Animal experiments showed low pathogenicity of the selected viruses for chickens, although some chickens died after inoculation. The viruses showed no overt clinical signs in mice, but they could replicate in murine lungs prior to adaptation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Characterization of H9N2 influenza viruses isolated from Dongting Lake wetland in 2007

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Publisher
Springer Journals
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Biomedicine; Infectious Diseases; Medical Microbiology ; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-010-0836-4
Publisher site
See Article on Publisher Site

Abstract

In 2007, a total of eight H9N2 influenza viruses were isolated from the water and fowl feces in Dongting Lake wetland, China. The genomes of the eight viruses were sequenced, and all eight gene segments were subjected to phylogenetic analysis. The results showed that all the isolates belonged to the same genotype, in which the HA, NA and NS gene segments were Chicken/Beijing/94-like; the PB2, PB1, PA and NP gene segments were Chicken/Shanghai/F/98-like; and the M gene was Quail/Hong Kong/G1/97-like. Animal experiments showed low pathogenicity of the selected viruses for chickens, although some chickens died after inoculation. The viruses showed no overt clinical signs in mice, but they could replicate in murine lungs prior to adaptation.

Journal

Archives of VirologySpringer Journals

Published: Jan 1, 2011

References

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