Seroprevalence of SARS-CoV-2 Antibodies in Denmark: Results of Two Nationwide Population-Based Surveys, February and May 2021.
Lene Wulff KrogsgaardLaura EspenhainSiri TriblerCharlotte Sværke JørgensenChristian Holm HansenFrederik Trier MøllerIda Glode HelmuthUte Wolff SönksenAnne-Marie VangstedHenrik UllumSteen EthelbergPublished in: Infection and drug resistance (2023)
Seroprevalence estimates doubled during the 2020-21 winter wave of SARS-CoV-2 infections and then stabilized as vaccinations were rolled out. The epidemic affected large cities and younger people the most. Denmark saw comparatively low infections rates, but high test coverage; an estimated four out of five infections were detected by RT-PCR in March-May 2021.