Optimal Control Applied to Vaccination and Testing Policies for COVID-19

In this paper, several policies for controlling the spread of SARS-CoV-2 are determined under the assumption that a limited number of effective COVID-19 vaccines and tests are available. These policies are calculated for different vaccination scenarios representing vaccine supply and administration...

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Main Authors: Alberto Olivares, Ernesto Staffetti
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/23/3100
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author Alberto Olivares
Ernesto Staffetti
author_facet Alberto Olivares
Ernesto Staffetti
author_sort Alberto Olivares
collection DOAJ
description In this paper, several policies for controlling the spread of SARS-CoV-2 are determined under the assumption that a limited number of effective COVID-19 vaccines and tests are available. These policies are calculated for different vaccination scenarios representing vaccine supply and administration restrictions, plus their impacts on the disease transmission are analyzed. The policies are determined by solving optimal control problems of a compartmental epidemic model, in which the control variables are the vaccination rate and the testing rate for the detection of asymptomatic infected people. A combination of the proportion of threatened and deceased people together with the cost of vaccination of susceptible people, and detection of asymptomatic infected people, is taken as the objective functional to be minimized, whereas different types of algebraic constraints are considered to represent several vaccination scenarios. A direct transcription method is employed to solve these optimal control problems. More specifically, the Hermite–Simpson collocation technique is used. The results of the numerical experiments show that the optimal control approach offers healthcare system managers a helpful resource for designing vaccination programs and testing plans to prevent COVID-19 transmission.
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spelling doaj.art-2526dbddc4d54562afa71762765163942023-11-23T02:46:03ZengMDPI AGMathematics2227-73902021-12-01923310010.3390/math9233100Optimal Control Applied to Vaccination and Testing Policies for COVID-19Alberto Olivares0Ernesto Staffetti1Campus de Fuenlabrada, School of Telecommunication Engineering, Universidad Rey Juan Carlos, Camino del Molino 5, 28942 Madrid, SpainCampus de Fuenlabrada, School of Telecommunication Engineering, Universidad Rey Juan Carlos, Camino del Molino 5, 28942 Madrid, SpainIn this paper, several policies for controlling the spread of SARS-CoV-2 are determined under the assumption that a limited number of effective COVID-19 vaccines and tests are available. These policies are calculated for different vaccination scenarios representing vaccine supply and administration restrictions, plus their impacts on the disease transmission are analyzed. The policies are determined by solving optimal control problems of a compartmental epidemic model, in which the control variables are the vaccination rate and the testing rate for the detection of asymptomatic infected people. A combination of the proportion of threatened and deceased people together with the cost of vaccination of susceptible people, and detection of asymptomatic infected people, is taken as the objective functional to be minimized, whereas different types of algebraic constraints are considered to represent several vaccination scenarios. A direct transcription method is employed to solve these optimal control problems. More specifically, the Hermite–Simpson collocation technique is used. The results of the numerical experiments show that the optimal control approach offers healthcare system managers a helpful resource for designing vaccination programs and testing plans to prevent COVID-19 transmission.https://www.mdpi.com/2227-7390/9/23/3100optimal controlvaccination and testing policiesCOVID-19 transmissionepidemic compartmental modelsensitivity analysis
spellingShingle Alberto Olivares
Ernesto Staffetti
Optimal Control Applied to Vaccination and Testing Policies for COVID-19
Mathematics
optimal control
vaccination and testing policies
COVID-19 transmission
epidemic compartmental model
sensitivity analysis
title Optimal Control Applied to Vaccination and Testing Policies for COVID-19
title_full Optimal Control Applied to Vaccination and Testing Policies for COVID-19
title_fullStr Optimal Control Applied to Vaccination and Testing Policies for COVID-19
title_full_unstemmed Optimal Control Applied to Vaccination and Testing Policies for COVID-19
title_short Optimal Control Applied to Vaccination and Testing Policies for COVID-19
title_sort optimal control applied to vaccination and testing policies for covid 19
topic optimal control
vaccination and testing policies
COVID-19 transmission
epidemic compartmental model
sensitivity analysis
url https://www.mdpi.com/2227-7390/9/23/3100
work_keys_str_mv AT albertoolivares optimalcontrolappliedtovaccinationandtestingpoliciesforcovid19
AT ernestostaffetti optimalcontrolappliedtovaccinationandtestingpoliciesforcovid19