ArticlebioRxiv : the preprint server for biology2025
Investigation of Powassan virus lineage II pathogenesis and neurotropism in mice.
Article in bioRxiv : the preprint server for biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Powassan virus (POWV) is an emerging tick-borne flavivirus that causes disease in humans. POWV has considerable genetic and phenotypic diversity, including highly variable replication Importance: Tick-borne flaviviruses exhibit considerable genetic and phenotypic diversity in nature, influencing their transmission and pathogenesis. Defining the mechanisms of pathogenesis requires understanding how inter-strain variation translates to phenotypic differences in viral dissemination and neuroinvasion. This study demonstrates that even closely related Powassan virus (POWV) lineage II strains display distinct disease phenotypes that are only partially attributable to nonsynonymous consensus mutations within the viral coding sequence. By highlighting the complexity of POWV infection dynamics in mice, these findings provide valuable insights into how POWV lineage II diversity may shape disease progression and severity in humans.
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