Research Article

Genetic Analysis of Avian Influenza Viruses: Cocirculation of Avian Influenza Viruses with Allele A and B Nonstructural Gene in Northern Pintail (Anas acuta) Ducks Wintering in Japan

Table 2

Percentage identity (%) of nucleotide sequences of the HA genes of avian influenza viruses: intrahomology and interhomology with interrelated sequences from GenBank.

VirusIdentitya (%)Highest identityb (%)

Subtype H1
 A/pintail/Aomori/422/07 H1N196.5–100A/duck/Hebei/843/05 H1N2 (97.2)
 A/pintail/Aomori/794/08 H1N1A/wild duck/JX/12416/05 H1N1 (>97.3)
 A/pintail/Miyagi/1472/08 H1N1
 A/pintail/Akita/1265/08 H1N2
 A/pintail/Akita/1353/08 H1N2
 A/pintail/Aomori/1130/08 H1N3

aNucleotide sequence identity among the isolates; bidentity with genes of viruses from GenBank.