Scientific Reports (Jun 2022)

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

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

DOI
https://doi.org/10.1038/s41598-022-15183-w
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 4

Abstract

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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.