Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps

The ongoing COVID-19 pandemic is the first epidemic in human history in which digital contact tracing has been deployed at a global scale. Tracking and quarantining all the contacts of individuals who test positive for a virus can help slow down an epidemic, but the impact of contact tracing is seve...

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Main Authors: Aleix Bassolas, Andrea Santoro, Sandro Sousa, Silvia Rognone, Vincenzo Nicosia
Format: Article
Language:English
Published: American Physical Society 2022-05-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.023092
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author Aleix Bassolas
Andrea Santoro
Sandro Sousa
Silvia Rognone
Vincenzo Nicosia
author_facet Aleix Bassolas
Andrea Santoro
Sandro Sousa
Silvia Rognone
Vincenzo Nicosia
author_sort Aleix Bassolas
collection DOAJ
description The ongoing COVID-19 pandemic is the first epidemic in human history in which digital contact tracing has been deployed at a global scale. Tracking and quarantining all the contacts of individuals who test positive for a virus can help slow down an epidemic, but the impact of contact tracing is severely limited by the generally low adoption of contact-tracing apps in the population. We derive here an analytical expression for the effectiveness of contact-tracing app installation strategies in a susceptible-infected-recovered (SIR) model on a given contact graph. We propose a decentralized heuristic to improve the effectiveness of contact tracing under fixed adoption rates, which targets a set of individuals to install contact-tracing apps and can be easily implemented. Simulations on a large number of real-world contact networks confirm that this heuristic represents a feasible alternative to the current state of the art.
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spelling doaj.art-70fb9d2e655e49929174f81cd0a909ae2024-04-12T17:20:33ZengAmerican Physical SocietyPhysical Review Research2643-15642022-05-014202309210.1103/PhysRevResearch.4.023092Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing appsAleix BassolasAndrea SantoroSandro SousaSilvia RognoneVincenzo NicosiaThe ongoing COVID-19 pandemic is the first epidemic in human history in which digital contact tracing has been deployed at a global scale. Tracking and quarantining all the contacts of individuals who test positive for a virus can help slow down an epidemic, but the impact of contact tracing is severely limited by the generally low adoption of contact-tracing apps in the population. We derive here an analytical expression for the effectiveness of contact-tracing app installation strategies in a susceptible-infected-recovered (SIR) model on a given contact graph. We propose a decentralized heuristic to improve the effectiveness of contact tracing under fixed adoption rates, which targets a set of individuals to install contact-tracing apps and can be easily implemented. Simulations on a large number of real-world contact networks confirm that this heuristic represents a feasible alternative to the current state of the art.http://doi.org/10.1103/PhysRevResearch.4.023092
spellingShingle Aleix Bassolas
Andrea Santoro
Sandro Sousa
Silvia Rognone
Vincenzo Nicosia
Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps
Physical Review Research
title Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps
title_full Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps
title_fullStr Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps
title_full_unstemmed Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps
title_short Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps
title_sort optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps
url http://doi.org/10.1103/PhysRevResearch.4.023092
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