Emerging Infectious Diseases (Jun 2023)

High Prevalence of SARS-CoV-2 Omicron Infection Despite High Seroprevalence, Sweden, 2022

  • Ramona Groenheit,
  • Philip Bacchus,
  • Ilias Galanis,
  • Klara Sondén,
  • Ioana Bujila,
  • Tatiana Efimova,
  • Fredrik Garli,
  • Oskar Karlsson Lindsjö,
  • Mikael Mansjö,
  • Elin Movert,
  • Aleksandra Pettke,
  • Marie Rapp,
  • Maike Sperk,
  • Sandra Söderholm,
  • Karin Valentin Asin,
  • Sarah Zanetti,
  • Maria Lind Karlberg,
  • Andreas Bråve,
  • Kim Blom,
  • Jonas Klingström

DOI
https://doi.org/10.3201/eid2906.221862
Journal volume & issue
Vol. 29, no. 6
pp. 1240 – 1243

Abstract

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We performed 2 surveys during 2022 to estimate point prevalences of SARS-CoV-2 infection compared with overall seroprevalence in Sweden. Point prevalence was 1.4% in March and 1.5% in September. Estimated seroprevalence was >80%, including among unvaccinated children. Continued SARS-CoV-2 surveillance is necessary for detecting emerging, possibly more pathogenic variants.

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