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. 2022 Jun 25;12(1):10816.
doi: 10.1038/s41598-022-15183-w.

Seroprevalence of SARS-CoV-2 in Sweden, April 26 to May 9, 2021

Jessica Beser  1   2 , Ilias Galanis  3 , Theresa Enkirch  3 , Sharon Kühlmann Berenzon  3 , Edward van Straten  3 , Jan Duracz  3 , Marie Rapp  3 , Katherina Zakikhany  3 , Mikael Mansjö  3 , Julia Wigren Byström  4 , Mattias N E Forsell  4 , Ramona Groenheit  3 , Karin Tegmark Wisell  3 , Andreas Bråve  3
Affiliations

Seroprevalence of SARS-CoV-2 in Sweden, April 26 to May 9, 2021

Jessica Beser et al. Sci Rep. .

Abstract

A national point seroprevalence study of SARS-CoV-2 was conducted in Sweden in April-May 2021. In total, 2860 individuals 3 to 90 years old from a probability-based web panel were included. Results showed that an estimated 32.6% of the population in Sweden had detectable levels of antibodies, and among non-vaccinated 20.1% had detectable levels of antibodies. We tested for differences in seroprevalence between age groups and by sex and estimated seroprevalence among previously infected participants by time since reporting.

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Conflict of interest statement

JWB and MF are shareholders of Xerum AB that performed the serological analyses. All other authors declare that there is no conflict of interest.

Figures

Figure 1
Figure 1
Inclusion of study participants.
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