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Public health effectiveness of digital contact tracing in the COVID-19 pandemic: A systematic review of available data

BACKGROUND AND AIM: Contact tracing is a key element of epidemiologic investigation and active surveillance during communicable infectious diseases outbreaks. Digital contact tracing (DCT) are new technologies that have been increasingly adopted in different countries to support conventional contact...

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Autores principales: Mazza*, Clara, Girardi*, Daniela, Gentile, Leandro, Gaeta, Maddalena, Signorelli, Carlo, Odone, Anna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Mattioli 1885 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8851023/
https://www.ncbi.nlm.nih.gov/pubmed/34889315
http://dx.doi.org/10.23750/abm.v92iS6.12237
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author Mazza*, Clara
Girardi*, Daniela
Gentile, Leandro
Gaeta, Maddalena
Signorelli, Carlo
Odone, Anna
author_facet Mazza*, Clara
Girardi*, Daniela
Gentile, Leandro
Gaeta, Maddalena
Signorelli, Carlo
Odone, Anna
author_sort Mazza*, Clara
collection PubMed
description BACKGROUND AND AIM: Contact tracing is a key element of epidemiologic investigation and active surveillance during communicable infectious diseases outbreaks. Digital contact tracing (DCT) are new technologies that have been increasingly adopted in different countries to support conventional contact tracing efforts to control the COVID-19 pandemic. However, scant evidence is available on its effectiveness. We applied the Indicator Framework issued in 2021 jointly by the World Health Organization (WHO) and the European Centre for Disease Prevention and Control (ECDC) to assess the available evidence on DCT adoption and impact in the context of the COVID-19 pandemic. METHODS: We carried out a systematic review following the PRISMA guidelines (Prospero registration number: CRD42021253662) to retrieve, pool, and critically appraise studies published in English from November 2019 to April 2021. We excluded mathematical models of effectiveness. Only studies representative of the general population or specific populations were included. In line with the WHO-ECDC indicator framework, outcomes of interest were grouped in indicators of: i) DCT use, ii) DCT success, and iii) DCT performance. RESULTS: We identified 1.201 citations searching PubMed, Embase, Web of Science and The Cochrane Library. After screening, 10 studies were included. All included studies reported measures of DCT use, varying widely by study population and setting (percentage of DCT apps download from 0.01% to 58.3% in included studies). Only one reported measures of DCT success (ratio of exposure notifications received to positive test results entered), while no studies were retrieved reporting measures of DCT performance. CONCLUSIONS: DCT is a promising technology in the field of epidemics control. Its adoption is hindered by several normative, technical and acceptance barriers in different regions and countries. Our review shows that while some evidence is available on its adoption and use in selected settings, very scant data is available on its effectiveness in the fight against COVID-19. As digitalization provides new tools for infection control at the population level, solid research is needed to quantify the public health effects of their application. (www.actabiomedica.it)
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spelling pubmed-88510232022-02-28 Public health effectiveness of digital contact tracing in the COVID-19 pandemic: A systematic review of available data Mazza*, Clara Girardi*, Daniela Gentile, Leandro Gaeta, Maddalena Signorelli, Carlo Odone, Anna Acta Biomed Reviews/Focus on BACKGROUND AND AIM: Contact tracing is a key element of epidemiologic investigation and active surveillance during communicable infectious diseases outbreaks. Digital contact tracing (DCT) are new technologies that have been increasingly adopted in different countries to support conventional contact tracing efforts to control the COVID-19 pandemic. However, scant evidence is available on its effectiveness. We applied the Indicator Framework issued in 2021 jointly by the World Health Organization (WHO) and the European Centre for Disease Prevention and Control (ECDC) to assess the available evidence on DCT adoption and impact in the context of the COVID-19 pandemic. METHODS: We carried out a systematic review following the PRISMA guidelines (Prospero registration number: CRD42021253662) to retrieve, pool, and critically appraise studies published in English from November 2019 to April 2021. We excluded mathematical models of effectiveness. Only studies representative of the general population or specific populations were included. In line with the WHO-ECDC indicator framework, outcomes of interest were grouped in indicators of: i) DCT use, ii) DCT success, and iii) DCT performance. RESULTS: We identified 1.201 citations searching PubMed, Embase, Web of Science and The Cochrane Library. After screening, 10 studies were included. All included studies reported measures of DCT use, varying widely by study population and setting (percentage of DCT apps download from 0.01% to 58.3% in included studies). Only one reported measures of DCT success (ratio of exposure notifications received to positive test results entered), while no studies were retrieved reporting measures of DCT performance. CONCLUSIONS: DCT is a promising technology in the field of epidemics control. Its adoption is hindered by several normative, technical and acceptance barriers in different regions and countries. Our review shows that while some evidence is available on its adoption and use in selected settings, very scant data is available on its effectiveness in the fight against COVID-19. As digitalization provides new tools for infection control at the population level, solid research is needed to quantify the public health effects of their application. (www.actabiomedica.it) Mattioli 1885 2021 2021-10-01 /pmc/articles/PMC8851023/ /pubmed/34889315 http://dx.doi.org/10.23750/abm.v92iS6.12237 Text en Copyright: © 2021 ACTA BIO MEDICA SOCIETY OF MEDICINE AND NATURAL SCIENCES OF PARMA https://creativecommons.org/licenses/by-nc-sa/4.0/This work is licensed under a Creative Commons Attribution 4.0 International License
spellingShingle Reviews/Focus on
Mazza*, Clara
Girardi*, Daniela
Gentile, Leandro
Gaeta, Maddalena
Signorelli, Carlo
Odone, Anna
Public health effectiveness of digital contact tracing in the COVID-19 pandemic: A systematic review of available data
title Public health effectiveness of digital contact tracing in the COVID-19 pandemic: A systematic review of available data
title_full Public health effectiveness of digital contact tracing in the COVID-19 pandemic: A systematic review of available data
title_fullStr Public health effectiveness of digital contact tracing in the COVID-19 pandemic: A systematic review of available data
title_full_unstemmed Public health effectiveness of digital contact tracing in the COVID-19 pandemic: A systematic review of available data
title_short Public health effectiveness of digital contact tracing in the COVID-19 pandemic: A systematic review of available data
title_sort public health effectiveness of digital contact tracing in the covid-19 pandemic: a systematic review of available data
topic Reviews/Focus on
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8851023/
https://www.ncbi.nlm.nih.gov/pubmed/34889315
http://dx.doi.org/10.23750/abm.v92iS6.12237
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