Intervention strategies with 2D cellular automata for testing SARS-CoV-2 and reopening the economy

Abstract During the period of time between a new disease outbreaks and its vaccine is deployed, the health and the economic systems have to find a testing strategy for reopening activities. In particular, asymptomatic individuals, who transmit locally the COVID-19 indoors, have to be identified and...

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Main Authors: Igor Lugo, Martha G. Alatriste-Contreras
Format: Article
Language:English
Published: Nature Portfolio 2022-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-17665-3
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author Igor Lugo
Martha G. Alatriste-Contreras
author_facet Igor Lugo
Martha G. Alatriste-Contreras
author_sort Igor Lugo
collection DOAJ
description Abstract During the period of time between a new disease outbreaks and its vaccine is deployed, the health and the economic systems have to find a testing strategy for reopening activities. In particular, asymptomatic individuals, who transmit locally the COVID-19 indoors, have to be identified and isolated. We proposed a 2D cellular automaton based on the SI epidemic model for selecting the most desirable testing frequency and identifying the best fitting size of random trails on local urban environments to diagnose SARS-CoV-2 and isolate infected people. We used the complex systems approach to face the challenge of a large-scale test strategy based on urban interventions, starting with first responders and essential workers. We used the case of Mexico to exemplify a credible and intelligent intervention that reduces the virus transmission and detects economic and health costs. Findings suggest that controlling and stopping the virus transmission in a short period of time are possible if the frequency of testing is daily and the percentage of random samples to be tested is at least 90%. This combination of model parameters represents the least expensive intervention compared to others. Therefore, the key for a national testing-isolating strategy is local interventions.
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spelling doaj.art-220a21f459864c56b3d5afcd2694d9822022-12-22T04:01:49ZengNature PortfolioScientific Reports2045-23222022-08-0112111310.1038/s41598-022-17665-3Intervention strategies with 2D cellular automata for testing SARS-CoV-2 and reopening the economyIgor Lugo0Martha G. Alatriste-Contreras1Centro Regional de Investigaciones Multidisciplinarias (CRIM), National Autonomous University of MexicoFacultad de Economía, National Autonomous University of MexicoAbstract During the period of time between a new disease outbreaks and its vaccine is deployed, the health and the economic systems have to find a testing strategy for reopening activities. In particular, asymptomatic individuals, who transmit locally the COVID-19 indoors, have to be identified and isolated. We proposed a 2D cellular automaton based on the SI epidemic model for selecting the most desirable testing frequency and identifying the best fitting size of random trails on local urban environments to diagnose SARS-CoV-2 and isolate infected people. We used the complex systems approach to face the challenge of a large-scale test strategy based on urban interventions, starting with first responders and essential workers. We used the case of Mexico to exemplify a credible and intelligent intervention that reduces the virus transmission and detects economic and health costs. Findings suggest that controlling and stopping the virus transmission in a short period of time are possible if the frequency of testing is daily and the percentage of random samples to be tested is at least 90%. This combination of model parameters represents the least expensive intervention compared to others. Therefore, the key for a national testing-isolating strategy is local interventions.https://doi.org/10.1038/s41598-022-17665-3
spellingShingle Igor Lugo
Martha G. Alatriste-Contreras
Intervention strategies with 2D cellular automata for testing SARS-CoV-2 and reopening the economy
Scientific Reports
title Intervention strategies with 2D cellular automata for testing SARS-CoV-2 and reopening the economy
title_full Intervention strategies with 2D cellular automata for testing SARS-CoV-2 and reopening the economy
title_fullStr Intervention strategies with 2D cellular automata for testing SARS-CoV-2 and reopening the economy
title_full_unstemmed Intervention strategies with 2D cellular automata for testing SARS-CoV-2 and reopening the economy
title_short Intervention strategies with 2D cellular automata for testing SARS-CoV-2 and reopening the economy
title_sort intervention strategies with 2d cellular automata for testing sars cov 2 and reopening the economy
url https://doi.org/10.1038/s41598-022-17665-3
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