First cases of SARS-CoV-2 BA.2.86 in Denmark, 2023

Euro Surveill. 2023 Sep;28(36):2300460. doi: 10.2807/1560-7917.ES.2023.28.36.2300460.


We describe 10 cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant BA.2.86 detected in Denmark, including molecular characteristics and results from wastewater surveillance that indicate that the variant is circulating in the country at a low level. This new variant with many spike gene mutations was classified as a variant under monitoring by the World Health Organization on 17 August 2023. Further global monitoring of COVID-19, BA.2.86 and other SARS-CoV-2 variants is highly warranted.

Keywords: COVID-19; SARS-CoV-2; WGS; diagnostic preparedness; emerging variant; epidemiological preparedness; sequencing; virus; wastewater surveillance.

MeSH terms

  • COVID-19*
  • Denmark / epidemiology
  • Humans
  • SARS-CoV-2 / genetics
  • Wastewater
  • Wastewater-Based Epidemiological Monitoring


  • Wastewater

Supplementary concepts

  • SARS-CoV-2 variants