Rapid increase in SARS-CoV-2 seroprevalence during the emergence of Omicron variant, Finland

Affiliations

• ¹ HUS Diagnostic Center, HUSLAB, Clinical Microbiology, University of Helsinki and Helsinki University Hospital, P.O.B. 720 (Topeliuksenkatu 32), N00029 HUS, Helsinki, Finland. maarit.ahava@hus.fi.
• ² HUS Diagnostic Center, HUSLAB, Clinical Microbiology, University of Helsinki and Helsinki University Hospital, P.O.B. 720 (Topeliuksenkatu 32), N00029 HUS, Helsinki, Finland.
• ³ Translational Immunology Research Program and Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland.
• ⁴ Department of Virology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
• ⁵ Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland.