SARS-CoV-2 exposure, symptoms and seroprevalence in healthcare workers in Sweden

Ann-Sofie Rudberg, Sebastian Havervall, Anna Månberg, August Jernbom Falk, Katherina Aguilera, Henry Ng, Lena Gabrielsson, Ann-Christin Salomonsson, Leo Hanke, Ben Murrell, Gerald McInerney, Jennie Olofsson, Eni Andersson, Cecilia Hellström, Shaghayegh Bayati, Sofia Bergström, Elisa Pin, Ronald Sjöberg, Hanna Tegel, My Hedhammar, Mia Phillipson, Peter Nilsson, Sophia Hober and Charlotte Thålin ()
Additional contact information
Ann-Sofie Rudberg: Danderyd hospital
Sebastian Havervall: Karolinska Institutet, Danderyd Hospital
Anna Månberg: KTH Royal Institute of Technology, SciLifeLab
August Jernbom Falk: KTH Royal Institute of Technology, SciLifeLab
Katherina Aguilera: Karolinska Institutet, Danderyd Hospital
Henry Ng: Uppsala University, SciLifeLab
Lena Gabrielsson: Karolinska Institutet, Danderyd Hospital
Ann-Christin Salomonsson: Karolinska Institutet, Danderyd Hospital
Leo Hanke: Karolinska Institutet
Ben Murrell: Karolinska Institutet
Gerald McInerney: Karolinska Institutet
Jennie Olofsson: KTH Royal Institute of Technology, SciLifeLab
Eni Andersson: KTH Royal Institute of Technology, SciLifeLab
Cecilia Hellström: KTH Royal Institute of Technology, SciLifeLab
Shaghayegh Bayati: KTH Royal Institute of Technology, SciLifeLab
Sofia Bergström: KTH Royal Institute of Technology, SciLifeLab
Elisa Pin: KTH Royal Institute of Technology, SciLifeLab
Ronald Sjöberg: KTH Royal Institute of Technology, SciLifeLab
Hanna Tegel: KTH Royal Institute of Technology
My Hedhammar: KTH Royal Institute of Technology
Mia Phillipson: Uppsala University, SciLifeLab
Peter Nilsson: KTH Royal Institute of Technology, SciLifeLab
Sophia Hober: KTH Royal Institute of Technology
Charlotte Thålin: Karolinska Institutet, Danderyd Hospital

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract SARS-CoV-2 may pose an occupational health risk to healthcare workers. Here, we report the seroprevalence of SARS-CoV-2 antibodies, self-reported symptoms and occupational exposure to SARS-CoV-2 among healthcare workers at a large acute care hospital in Sweden. The seroprevalence of IgG antibodies against SARS-CoV-2 was 19.1% among the 2149 healthcare workers recruited between April 14th and May 8th 2020, which was higher than the reported regional seroprevalence during the same time period. Symptoms associated with seroprevalence were anosmia (odds ratio (OR) 28.4, 95% CI 20.6–39.5) and ageusia (OR 19.2, 95% CI 14.3–26.1). Seroprevalence was also associated with patient contact (OR 2.9, 95% CI 1.9–4.5) and covid-19 patient contact (OR 3.3, 95% CI 2.2–5.3). These findings imply an occupational risk for SARS-CoV-2 infection among healthcare workers. Continued measures are warranted to assure healthcare workers safety and reduce transmission from healthcare workers to patients and to the community.

Date: 2020
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DOI: 10.1038/s41467-020-18848-0

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