[Phylogenetic analysis of the nucleotide sequences of Chatanga virus strains, the new representative of California encephalitis serocomplex, isolated in different regions of the Russian Federation].

The complete nucleotide sequences of the S segment and the fragments of M and L segments (on 900 and 410 nucleotides, respectively) were determined in 14 California encephalitis serocomplex (CES) strains isolated from different regions of the Russian Federation. Phylogenetic analysis by the sequences of genomic S, M, and L segments indicated that all Russian strains were an individual independent CES virus. The new virus is named Chatanga for the place of isolation of one of the strains. Two genetic groups of Chatanga virus have been identified. Snowshoe hare (Lepus americanus) virus and La Crosse virus are closest to Chatanga virus among CES viruses.