Evolutionary Dynamics of Avian Influenza Viruses Isolated from Wild Birds in Moscow.

ABSTRACT: Forty-five strains of AIVs were isolated from wild aquatic birds during their autumn migration through Moscow (Russia). The aim of this work is to study the dynamics of AIV genomes in their natural habitat. Viruses were isolated from fecal sample in embryonated chicken eggs; their complete genomes were sequenced, and a phylogenetic analysis was performed. The gene segments of the same lineage persisted over the years in the absence of persistence of complete viral genomes. The genes for internal proteins of the same lineage were often maintained by the viruses over few years; however, they were typically associated with the genes of novel HA and NA subtypes. Although frequent reassortment events were observed for any pair of internal genes, there was no reassortment between HA and NA segme

SUBMITTER: Postnikova Y 

PROVIDER: S-EPMC9917497 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature