Genes of A/duck/Tuva/01/06 were sequenced and analyzed for molecular markers of pathogenicity. Also phylogenetic analysis was performed. Results are presented in figure 1 . A/duck/Tuva/01/06 belongs to group of Qinghailike viruses. HA contains 5 polybasic aminoacids (PQGRRKKKR↓GL) in cleavege site of HA [15] . The receptor binding domen can be characterized as "avian" [16] . High pathogenicity to mammals in general correlates with presence of 627K in PB2 [17] .