{"entity": "publication", "iuid": "bc5ef18927414c81bcfa1340e5211f4b", "timestamp": "2026-09-24T14:45:08.308Z", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/bc5ef18927414c81bcfa1340e5211f4b.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/bc5ef18927414c81bcfa1340e5211f4b"}}, "title": "Risk of SARS-CoV-2 exposure among hospital healthcare workers in relation to patient contact and type of care.", "authors": [{"family": "Klevebro", "given": "Susanna", "initials": "S", "orcid": "0000-0002-1261-6502", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/b6354dea81f4472e88f9eef0934c4fc4.json"}}, {"family": "Bahram", "given": "Fuad", "initials": "F"}, {"family": "Elfstr\u00f6m", "given": "K Miriam", "initials": "KM"}, {"family": "Hellberg", "given": "Ulrika", "initials": "U"}, {"family": "Hober", "given": "Sophia", "initials": "S"}, {"family": "Merid", "given": "Simon Kebede", "initials": "SK"}, {"family": "Kull", "given": "Inger", "initials": "I"}, {"family": "Nilsson", "given": "Peter", "initials": "P"}, {"family": "Tornvall", "given": "Per", "initials": "P"}, {"family": "Wang", "given": "Gang", "initials": "G"}, {"family": "Conneryd Lundgren", "given": "Kalle", "initials": "K"}, {"family": "Ponzer", "given": "Sari", "initials": "S"}, {"family": "Dillner", "given": "Joakim", "initials": "J"}, {"family": "Mel\u00e9n", "given": "Erik", "initials": "E", "orcid": "0000-0002-8248-0663", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/1135b1c6793742509c13cd1ba7174a7c.json"}}], "type": "journal article", "published": "2021-11-00", "journal": {"title": "Scand J Public Health", "issn": "1651-1905", "volume": "49", "issue": "7", "pages": "707-712", "issn-l": null}, "abstract": "We aimed to assess prevalence of IgG antibodies to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) and factors associated with seropositivity in a large cohort of healthcare workers (HCWs).\n\nFrom 11 May until 11 June 2020, 3981 HCWs at a large Swedish emergency care hospital provided serum samples and questionnaire data. Presence of IgG antibodies to SARS-CoV-2 was measured as an indicator of SARS-CoV-2 exposure.\n\nThe total seroprevalence was 18% and increased during the study period. Among the seropositive HCWs, 11% had been entirely asymptomatic. Participants who worked with COVID-19 patients had higher odds for seropositivity: adjusted odds ratio 1.96 (95% confidence intervals 1.59-2.42). HCWs from three of the departments managing COVID-19 patients had significantly higher seroprevalences, whereas the prevalence among HCWs from the intensive care unit (also managing COVID-19 patients) was significantly lower.\n\nHCWs in contact with SARS-CoV-2 infected patients had a variable, but on average higher, likelihood for SARS-CoV-2 infections.", "doi": "10.1177/14034948211022434", "pmid": "34148454", "labels": [], "xrefs": [{"db": "pmc", "key": "PMC8521364"}], "notes": [], "created": "2026-09-23T12:07:10.049Z", "modified": "2026-09-23T12:07:10.115Z"}