Espenhain L, Funk T, Overvad M et al.

PMCID: PMC8728489 PMID: 34915977


By 9 December 2021, 785 SARS-CoV-2 Omicron variant cases have been identified in Denmark. Most cases were fully (76%) or booster-vaccinated (7.1%); 34 (4.3%) had a previous SARS-CoV-2 infection. The majority of cases with available information reported symptoms (509/666; 76%) and most were infected in Denmark (588/644; 91%). One in five cases cannot be linked to previous cases, indicating widespread community transmission. Nine cases have been hospitalised, one required intensive care and no deaths have been registered.


Keywords: COVID-19, Omicron, surveillance, epidemiology, Denmark, viral infections, laboratory, SARS-CoV-2

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