COVID-19 Seroprevalence among Healthcare Workers of a Large COVID-19 Hospital in Rome Reveals Strengths and Limits of Two Different Serological Tests

Healthcare workers are at the forefront against COVID-19, worldwide. Since Fondazione Policlinico Universitario A. Gemelli (FPG) IRCCS was enlisted as a COVID-19 hospital, the healthcare workers deployed to COVID-19 wards were separated from those with limited/no exposure, whereas the administrative staff were designated to work from home. Between 4 June and 3 July 2020, an investigation was conducted to evaluate the seroprevalence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunoglobulin (IgG) antibodies among the employees of the FPG using point-of-care (POC) and venous blood tests. Sensitivity, specificity, and predictive values were determined with reverse-transcription polymerase chain reaction on nasal/oropharyngeal swabs as the diagnostic gold standard. The participants enrolled amounted to 4777. Seroprevalence was 3.66% using the POC test and 1.19% using the venous blood test, with a significant difference (<i<p</i< < 0.05). The POC test sensitivity and specificity were, respectively, 63.64% (95% confidence interval (CI): 62.20% to 65.04%) and 96.64% (95% CI: 96.05% to 97.13%), while those of the venous blood test were, respectively, 78.79% (95% CI: 77.58% to 79.94%) and 99.36% (95% CI: 99.07% to 99.55%). Among the low-risk populations, the POC test’s predictive values were 58.33% (positive) and 98.23% (negative), whereas those of the venous blood test were 92.86% (positive) and 98.53% (negative). According to our study, these serological tests cannot be a valid alternative to diagnose COVID-19 infection in progress..

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:18

Enthalten in:

International Journal of Environmental Research and Public Health - 18(2021), 2650, p 2650

Sprache:

Englisch

Beteiligte Personen:

Giuseppe Vetrugno [VerfasserIn]
Daniele Ignazio La Milia [VerfasserIn]
Floriana D’Ambrosio [VerfasserIn]
Marcello Di Pumpo [VerfasserIn]
Roberta Pastorino [VerfasserIn]
Stefania Boccia [VerfasserIn]
Rosalba Ricci [VerfasserIn]
Fabio De-Giorgio [VerfasserIn]
Michela Cicconi [VerfasserIn]
Federica Foti [VerfasserIn]
Domenico Pascucci [VerfasserIn]
Francesco Castrini [VerfasserIn]
Elettra Carini [VerfasserIn]
Andrea Cambieri [VerfasserIn]
Maria Elena D’Alfonso [VerfasserIn]
Gennaro Capalbo [VerfasserIn]
Massimo Fantoni [VerfasserIn]
Umberto Moscato [VerfasserIn]
Domenico Staiti [VerfasserIn]
Francesco Maria De Simone [VerfasserIn]
Filippo Berloco [VerfasserIn]
Gianfranco Damiani [VerfasserIn]
Maurizio Zega [VerfasserIn]
Paola Cattani [VerfasserIn]
Brunella Posteraro [VerfasserIn]
Maurizio Sanguinetti [VerfasserIn]
Patrizia Laurenti [VerfasserIn]

Links:

doi.org [kostenfrei]
doaj.org [kostenfrei]
www.mdpi.com [kostenfrei]
Journal toc [kostenfrei]
Journal toc [kostenfrei]

Themen:

COVID-19
Healthcare workers
Medicine
Point-of-care
R
SARS-CoV-2
Serological tests
Seroprevalence

doi:

10.3390/ijerph18052650

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

DOAJ048296007