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Sammanfattning

The non-structural (NS) gene of highly pathogenic avian influenza viruses of the H5N1 subtype (HPAI-H5N1) isolated in Baltic Sea area of Sweden in 2006 was studied. The phylogenetic analysis data demonstrated that two distinct sub-lineages of HPAI-H5N1 were circulating during the outbreak in Northern Europe in Spring 2006. Sub-lineage I viruses fell into the same clade as viruses found in Denmark and Germany and formed a sub-clade which also included viruses isolated in the Russian Federation in late 2005. Sub-lineage II viruses formed a sub-clade closely related to European, Middle Eastern and African isolates reported in 2006. Analysis of the inferred amino acid sequences of the NS1 protein showed a deletion of five amino acids at positions 80-84. No viruses represented in this study contained Glu92 in the NS1 and all isolates contained the avian-like ESKV amino acid sequences at the NS1 C-terminal end. Sub-lineage I isolates contained unique substitutions V194I in NS1 and G63E in Nuclear export protein (NEP).

Nyckelord

NS1; H5N1; influenza; avian

Publicerad i

Virus Genes
2008, volym: 36, nummer: 1, sidor: 117-125
Utgivare: SPRINGER

SLU författare

UKÄ forskningsämne

Veterinärmedicin
Husdjursvetenskap

Publikationens identifierare

  • DOI: https://doi.org/10.1007/s11262-007-0188-7

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/20462