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Uukuniemi virus, Czech Republic.

Anna Papa1, Hana Zelená2, Elpida Papadopoulou1

  • 1Department of Microbiology, Medical School, Aristotle University of Thessaloniki, Greece.

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|April 28, 2018
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Summary

Whole-genome sequencing of Uukuniemi virus (UUKV) strains from Czech Republic reveals high genetic identity. This suggests Uukuniemi virus, a model tick-borne phlebovirus, possesses a stable genome despite temporal separation.

Keywords:
Czech RepublicIxodes ricinusPhlebovirusUukuniemi virus

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Area of Science:

  • Virology
  • Genomics
  • Tick-borne diseases

Background:

  • Tick-borne phleboviruses are gaining attention due to emerging viruses like severe fever with thrombocytopenia syndrome virus and Heartland virus.
  • Uukuniemi virus (UUKV) serves as a key model for studying tick-borne phleboviruses, but sequence data is scarce.

Purpose of the Study:

  • To perform whole-genome sequencing on two Uukuniemi virus strains.
  • To analyze the genetic stability of Uukuniemi virus in Ixodes ricinus ticks within the Czech Republic.

Main Methods:

  • Whole-genome sequencing of two Uukuniemi virus strains isolated from Ixodes ricinus ticks in 2000 and 2004.
  • Phylogenetic analysis comparing the sequenced strains with historical Uukuniemi virus isolates.

Main Results:

  • The two Uukuniemi virus strains from the Czech Republic exhibited high nucleotide and amino acid identity.
  • Both Czech strains clustered genetically with the Potepli63 strain, isolated in 1963.
  • The findings indicate significant genomic stability for Uukuniemi virus.

Conclusions:

  • Uukuniemi virus demonstrates remarkable genomic stability over time in its tick vectors.
  • This study provides valuable genomic data for Uukuniemi virus, enhancing its utility as a model for tick-borne phleboviruses.