Spread of Influenza Virus A (H5N1) Clade 184.108.40.206 to Bulgaria in Common Buzzards
Published Date:Oct 2012
Source:Emerg Infect Dis. 18(10):1596-1602.
Highly Pathogenic Avian Influenza
Influenza A Virus, H5N1 Subtype
Influenza In Birds
Molecular Sequence Data
Sequence Analysis, DNA
Description:On March 15, 2010, a highly pathogenic avian influenza virus was isolated from the carcass of a common buzzard (Buteo buteo) in Bulgaria. Phylogenetic analyses of the virus showed a close genetic relationship with influenza virus A (H5N1) clade 220.127.116.11 viruses isolated from wild birds in the Tyva Republic and Mongolia during 2009-2010. Designated A/common buzzard/Bulgaria/38WB/2010, this strain was highly pathogenic in chickens but had low pathogenicity in mice and ferrets and no molecular markers of increased pathogenicity in mammals. The establishment of clade 18.104.22.168 highly pathogenic avian influenza viruses of the H5N1 subtype in wild birds in Europe would increase the likelihood of health threats to humans and poultry in the region.
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