An iterative algorithm for optimizing COVID-19 vaccination strategies considering unknown supply

<h4>Background and objective</h4> The distribution of the newly developed vaccines presents a great challenge in the ongoing SARS-CoV-2 pandemic. Policy makers must decide which subgroups should be vaccinated first to minimize the negative consequences of the pandemic. These decisions mu...

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Main Authors: Martin Bicher, Claire Rippinger, Melanie Zechmeister, Beate Jahn, Gaby Sroczynski, Nikolai Mühlberger, Julia Santamaria-Navarro, Christoph Urach, Dominik Brunmeir, Uwe Siebert, Niki Popper
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060336/?tool=EBI
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author Martin Bicher
Claire Rippinger
Melanie Zechmeister
Beate Jahn
Gaby Sroczynski
Nikolai Mühlberger
Julia Santamaria-Navarro
Christoph Urach
Dominik Brunmeir
Uwe Siebert
Niki Popper
author_facet Martin Bicher
Claire Rippinger
Melanie Zechmeister
Beate Jahn
Gaby Sroczynski
Nikolai Mühlberger
Julia Santamaria-Navarro
Christoph Urach
Dominik Brunmeir
Uwe Siebert
Niki Popper
author_sort Martin Bicher
collection DOAJ
description <h4>Background and objective</h4> The distribution of the newly developed vaccines presents a great challenge in the ongoing SARS-CoV-2 pandemic. Policy makers must decide which subgroups should be vaccinated first to minimize the negative consequences of the pandemic. These decisions must be made upfront and under uncertainty regarding the amount of vaccine doses available at a given time. The objective of the present work was to develop an iterative optimization algorithm, which provides a prioritization order of predefined subgroups. The results of this algorithm should be optimal but also robust with respect to potentially limited vaccine supply. <h4>Methods</h4> We present an optimization meta-heuristic which can be used in a classic simulation-optimization setting with a simulation model in a feedback loop. The meta-heuristic can be applied in combination with any epidemiological simulation model capable of depicting the effects of vaccine distribution to the modeled population, accepts a vaccine prioritization plan in a certain notation as input, and generates decision making relevant variables such as COVID-19 caused deaths or hospitalizations as output. We finally demonstrate the mechanics of the algorithm presenting the results of a case study performed with an epidemiological agent-based model. <h4>Results</h4> We show that the developed method generates a highly robust vaccination prioritization plan which is proven to fulfill an elegant supremacy criterion: the plan is equally optimal for any quantity of vaccine doses available. The algorithm was tested on a case study in the Austrian context and it generated a vaccination plan prioritization favoring individuals age 65+, followed by vulnerable groups, to minimize COVID-19 related burden. <h4>Discussion</h4> The results of the case study coincide with the international policy recommendations which strengthen the applicability of the approach. We conclude that the path-dependent optimum optimum provided by the algorithm is well suited for real world applications, in which decision makers need to develop strategies upfront under high levels of uncertainty.
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spelling doaj.art-93754c2ee7444a65925351018f283cee2022-12-22T00:12:23ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01175An iterative algorithm for optimizing COVID-19 vaccination strategies considering unknown supplyMartin BicherClaire RippingerMelanie ZechmeisterBeate JahnGaby SroczynskiNikolai MühlbergerJulia Santamaria-NavarroChristoph UrachDominik BrunmeirUwe SiebertNiki Popper<h4>Background and objective</h4> The distribution of the newly developed vaccines presents a great challenge in the ongoing SARS-CoV-2 pandemic. Policy makers must decide which subgroups should be vaccinated first to minimize the negative consequences of the pandemic. These decisions must be made upfront and under uncertainty regarding the amount of vaccine doses available at a given time. The objective of the present work was to develop an iterative optimization algorithm, which provides a prioritization order of predefined subgroups. The results of this algorithm should be optimal but also robust with respect to potentially limited vaccine supply. <h4>Methods</h4> We present an optimization meta-heuristic which can be used in a classic simulation-optimization setting with a simulation model in a feedback loop. The meta-heuristic can be applied in combination with any epidemiological simulation model capable of depicting the effects of vaccine distribution to the modeled population, accepts a vaccine prioritization plan in a certain notation as input, and generates decision making relevant variables such as COVID-19 caused deaths or hospitalizations as output. We finally demonstrate the mechanics of the algorithm presenting the results of a case study performed with an epidemiological agent-based model. <h4>Results</h4> We show that the developed method generates a highly robust vaccination prioritization plan which is proven to fulfill an elegant supremacy criterion: the plan is equally optimal for any quantity of vaccine doses available. The algorithm was tested on a case study in the Austrian context and it generated a vaccination plan prioritization favoring individuals age 65+, followed by vulnerable groups, to minimize COVID-19 related burden. <h4>Discussion</h4> The results of the case study coincide with the international policy recommendations which strengthen the applicability of the approach. We conclude that the path-dependent optimum optimum provided by the algorithm is well suited for real world applications, in which decision makers need to develop strategies upfront under high levels of uncertainty.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060336/?tool=EBI
spellingShingle Martin Bicher
Claire Rippinger
Melanie Zechmeister
Beate Jahn
Gaby Sroczynski
Nikolai Mühlberger
Julia Santamaria-Navarro
Christoph Urach
Dominik Brunmeir
Uwe Siebert
Niki Popper
An iterative algorithm for optimizing COVID-19 vaccination strategies considering unknown supply
PLoS ONE
title An iterative algorithm for optimizing COVID-19 vaccination strategies considering unknown supply
title_full An iterative algorithm for optimizing COVID-19 vaccination strategies considering unknown supply
title_fullStr An iterative algorithm for optimizing COVID-19 vaccination strategies considering unknown supply
title_full_unstemmed An iterative algorithm for optimizing COVID-19 vaccination strategies considering unknown supply
title_short An iterative algorithm for optimizing COVID-19 vaccination strategies considering unknown supply
title_sort iterative algorithm for optimizing covid 19 vaccination strategies considering unknown supply
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060336/?tool=EBI
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