Optimizing vaccine allocation in an age-structured SIR model

Fuente: arXiv
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Main Authors: Almeida, Luís, Ducasse, Romain, Paparelli, Elisa
Format: Preprint
Published: 2026
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author Almeida, Luís
Ducasse, Romain
Paparelli, Elisa
author_facet Almeida, Luís
Ducasse, Romain
Paparelli, Elisa
contents We study an optimal control problem where the objective is to find the best vaccine allocation during an epidemic outbreak. The epidemic dynamics is described by an age-structured SIR model with nonlocal interactions. Both the infection and death rates depend on the age of the individuals, reflecting the effect of heterogeneities within the population. Our model includes a vaccination term, depending on time and age, which serves as a control function. The aim is to minimize the impact of the epidemic, that is, the number of casualties, under the constraint of limited vaccine supply. In a first part, we show that our optimization problem is equivalent to another static optimization problem. We then use this new optimization problem to obtain qualitative properties for the optimal allocations of vaccines.
format Preprint
id arxiv_https___arxiv_org_abs_2605_18256
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Optimizing vaccine allocation in an age-structured SIR model
Almeida, Luís
Ducasse, Romain
Paparelli, Elisa
Optimization and Control
We study an optimal control problem where the objective is to find the best vaccine allocation during an epidemic outbreak. The epidemic dynamics is described by an age-structured SIR model with nonlocal interactions. Both the infection and death rates depend on the age of the individuals, reflecting the effect of heterogeneities within the population. Our model includes a vaccination term, depending on time and age, which serves as a control function. The aim is to minimize the impact of the epidemic, that is, the number of casualties, under the constraint of limited vaccine supply. In a first part, we show that our optimization problem is equivalent to another static optimization problem. We then use this new optimization problem to obtain qualitative properties for the optimal allocations of vaccines.
title Optimizing vaccine allocation in an age-structured SIR model
topic Optimization and Control
url https://arxiv.org/abs/2605.18256