Cryptic SARS-CoV-2 lineage identified on two mink farms as a possible result of long-term undetected circulation in an unknown animal reservoir, Poland, November 2022 to January 2023

  • Katarzyna Domańska-Blicharz*
  • , Bas B. Oude Munnink
  • , Anna Orłowska
  • , Marcin Smreczak
  • , Justyna Opolska
  • , Anna Lisowska
  • , Paweł Trębas
  • , Wojciech Socha
  • , Aleksandra Giza
  • , Arkadiusz Bomba
  • , Ewelina Iwan
  • , Jerzy Rola
  • , Marion Koopmans
  • *Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

In late 2022 and early 2023, SARS-CoV-2 infections were detected on three mink farms in Poland situated within a few km from each other. Whole-genome sequencing of the viruses on two of the farms showed that they were related to a virus identified in humans in the same region 2 years before (B.1.1.307 lineage). Many mutations were found, including in the S protein typical of adaptations to the mink host. The origin of the virus remains to be determined.

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This article is copyright of the authors or their affiliated institutions, 2023.

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