Abstract
Avastrovirus (AAstV) is a genus of bird viruses infected are associated with avian diseases, including enteritis, growth retardation, nephritis and hepatitis leading to economic losses to farms and affecting food production worldwide. Despite numerous studies, data on diversity, phylogeny and epidemiology are presented mainly for poultry viruses. Studies on astroviruses of wild bird population highlight broad genetic diversity of viruses and limited understanding of their biological and ecological properties. In this study, we detected avastrovirus for the first time in wild migratory birds of the families Anatidae and Columbidae from Sakhalin Island, North Pacific Ocean. Phylogenetic analysis data showed the presence of Avastrovirus 2 and Avastrovirus 3 in wild doves and wild ducks, respectively. The data obtained shed light on the circulation of astroviruses on Sakhalin Island, which is crossed by East Asian–Australasian Flyway.