Journal
JOURNAL OF GENERAL VIROLOGY
Volume 84, Issue -, Pages 837-844Publisher
SOC GENERAL MICROBIOLOGY
DOI: 10.1099/vir.0.18792-0
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Ljungan virus (LV) is a suspected human pathogen recently isolated from bank voles in Sweden. This study describes the genetic characterization of a virus, M1146, which was isolated in 1962 from another vole species (Microtus montanus), trapped in Oregon, USA. Based on antigenic properties, M1146 was postulated previously as a. putative member of the family Picornaviridae. The near complete genomic sequence verifies that M1146 is a member of the Picornaviridae, most closely related to LVs isolated in Sweden. The strain M1146 possesses typical LV genomic organization, including a cluster of two 2A homologues. There are significant differences throughout the capsid protein region, while the non-structural region of M1146 is closely related to the Swedish LV genomes. Genetic and phylogenetic analyses show that M1146 represents a new genotype within the distinct LV cluster. Isolation of LV from both Swedish and American, voles trapped over a period of 30 years suggests a continuous worldwide presence.
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