High seroprevalence of SARS-CoV-2 in elderly care employees in Sweden

The COVID-19 pandemic is growing and spread in the Swedish elderly care system during April 2020. The increasing number of employees on sick-leave due to COVID-19 created severe logistic problems. Some elderly care homes therefore started to screen their personnel to secure the safety of the elderly...

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Autores principales:	Johanna F. Lindahl, Tove Hoffman, Mouna Esmaeilzadeh, Björn Olsen, Reidar Winter, Stefan Amer, Christian Molnár, Ann Svalberg, Åke Lundkvist
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2020
Materias:	covid-19 sars-cov-2 rapid test igm igg employees elderly care homes Infectious and parasitic diseases RC109-216
Acceso en línea:	https://doaj.org/article/17cf6e6cf6b6402582ab53ecf2f82e31
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spelling	oai:doaj.org-article:17cf6e6cf6b6402582ab53ecf2f82e312021-11-04T15:00:43ZHigh seroprevalence of SARS-CoV-2 in elderly care employees in Sweden2000-868610.1080/20008686.2020.1789036https://doaj.org/article/17cf6e6cf6b6402582ab53ecf2f82e312020-01-01T00:00:00Zhttp://dx.doi.org/10.1080/20008686.2020.1789036https://doaj.org/toc/2000-8686The COVID-19 pandemic is growing and spread in the Swedish elderly care system during April 2020. The increasing number of employees on sick-leave due to COVID-19 created severe logistic problems. Some elderly care homes therefore started to screen their personnel to secure the safety of the elderly and to avoid unnecessary quarantine of potentially immune employees. Secondary data from a screening with a COVID-19 rapid test for detection of SARS-CoV-2-specific IgM and IgG of 1,005 employees in 22 elderly care homes in Stockholm, Sweden, were analyzed. Seropositive employees were found in 21 out of the 22 care homes. In total, 23% (231/1,005) of the employees tested positive for antibodies against SARS-CoV-2, and 14.3% (144/1,005) were found positive for IgM (either alone or combined with IgG), indicating recent or present infection. Of those that tested seropositive, 46.5% did not report any clinical symptoms, indicating pre- or asymptomatic infections. Reported symptoms with the highest correlation with seropositivity were fever and loss of smell and taste. These results suggest that antibody testing of employees in elderly care homes is valuable for surveillance of disease development and a crucial screening tool in the effort to decrease the death toll in this pandemic.Johanna F. LindahlTove HoffmanMouna EsmaeilzadehBjörn OlsenReidar WinterStefan AmerChristian MolnárAnn SvalbergÅke LundkvistTaylor & Francis Grouparticlecovid-19sars-cov-2rapid testigmiggemployeeselderly care homesInfectious and parasitic diseasesRC109-216ENInfection Ecology & Epidemiology, Vol 10, Iss 1 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	covid-19 sars-cov-2 rapid test igm igg employees elderly care homes Infectious and parasitic diseases RC109-216
spellingShingle	covid-19 sars-cov-2 rapid test igm igg employees elderly care homes Infectious and parasitic diseases RC109-216 Johanna F. Lindahl Tove Hoffman Mouna Esmaeilzadeh Björn Olsen Reidar Winter Stefan Amer Christian Molnár Ann Svalberg Åke Lundkvist High seroprevalence of SARS-CoV-2 in elderly care employees in Sweden
description	The COVID-19 pandemic is growing and spread in the Swedish elderly care system during April 2020. The increasing number of employees on sick-leave due to COVID-19 created severe logistic problems. Some elderly care homes therefore started to screen their personnel to secure the safety of the elderly and to avoid unnecessary quarantine of potentially immune employees. Secondary data from a screening with a COVID-19 rapid test for detection of SARS-CoV-2-specific IgM and IgG of 1,005 employees in 22 elderly care homes in Stockholm, Sweden, were analyzed. Seropositive employees were found in 21 out of the 22 care homes. In total, 23% (231/1,005) of the employees tested positive for antibodies against SARS-CoV-2, and 14.3% (144/1,005) were found positive for IgM (either alone or combined with IgG), indicating recent or present infection. Of those that tested seropositive, 46.5% did not report any clinical symptoms, indicating pre- or asymptomatic infections. Reported symptoms with the highest correlation with seropositivity were fever and loss of smell and taste. These results suggest that antibody testing of employees in elderly care homes is valuable for surveillance of disease development and a crucial screening tool in the effort to decrease the death toll in this pandemic.
format	article
author	Johanna F. Lindahl Tove Hoffman Mouna Esmaeilzadeh Björn Olsen Reidar Winter Stefan Amer Christian Molnár Ann Svalberg Åke Lundkvist
author_facet	Johanna F. Lindahl Tove Hoffman Mouna Esmaeilzadeh Björn Olsen Reidar Winter Stefan Amer Christian Molnár Ann Svalberg Åke Lundkvist
author_sort	Johanna F. Lindahl
title	High seroprevalence of SARS-CoV-2 in elderly care employees in Sweden
title_short	High seroprevalence of SARS-CoV-2 in elderly care employees in Sweden
title_full	High seroprevalence of SARS-CoV-2 in elderly care employees in Sweden
title_fullStr	High seroprevalence of SARS-CoV-2 in elderly care employees in Sweden
title_full_unstemmed	High seroprevalence of SARS-CoV-2 in elderly care employees in Sweden
title_sort	high seroprevalence of sars-cov-2 in elderly care employees in sweden
publisher	Taylor & Francis Group
publishDate	2020
url	https://doaj.org/article/17cf6e6cf6b6402582ab53ecf2f82e31
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High seroprevalence of SARS-CoV-2 in elderly care employees in Sweden

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