Trends in seroprevalence of SARS-CoV-2 and infection fatality rate in the Norwegian population through the first year of the COVID-19 pandemic.
Gro TunheimGunnar Øyvind Isaksson RøTrung TranAnne-Marte Bakken KranJan Terje AndersenEline Benno VaageAnette KolderupJohn Torgils VaageFridtjof Lund-JohansenOlav HungnesPublished in: Influenza and other respiratory viruses (2021)
The seroprevalence estimates show a cumulative increase of SARS-CoV-2 infections over time in the Norwegian population and suggest some under-recording of confirmed cases. The IFR and IHR were low, corresponding to the relatively low number of COVID-19-associated deaths and hospitalizations in Norway. Most of the Norwegian population was still susceptible to SARS-CoV-2 infection after the first year of the pandemic.