Dynamic modeling of vaccinating behavior as a function of individual beliefs.

Individual perception of vaccine safety is an important factor in determining a person's adherence to a vaccination program and its consequences for disease control. This perception, or belief, about the safety of a given vaccine is not a static parameter but a variable subject to environmental...

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Main Authors: Flávio Codeço Coelho, Claudia T Codeço
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2009-07-01
Series:PLoS Computational Biology
Online Access:http://europepmc.org/articles/PMC2700262?pdf=render
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author Flávio Codeço Coelho
Flávio Codeço Coelho
Claudia T Codeço
author_facet Flávio Codeço Coelho
Flávio Codeço Coelho
Claudia T Codeço
author_sort Flávio Codeço Coelho
collection DOAJ
description Individual perception of vaccine safety is an important factor in determining a person's adherence to a vaccination program and its consequences for disease control. This perception, or belief, about the safety of a given vaccine is not a static parameter but a variable subject to environmental influence. To complicate matters, perception of risk (or safety) does not correspond to actual risk. In this paper we propose a way to include the dynamics of such beliefs into a realistic epidemiological model, yielding a more complete depiction of the mechanisms underlying the unraveling of vaccination campaigns. The methodology proposed is based on Bayesian inference and can be extended to model more complex belief systems associated with decision models. We found the method is able to produce behaviors which approximate what has been observed in real vaccine and disease scare situations. The framework presented comprises a set of useful tools for an adequate quantitative representation of a common yet complex public-health issue. These tools include representation of beliefs as Bayesian probabilities, usage of logarithmic pooling to combine probability distributions representing opinions, and usage of natural conjugate priors to efficiently compute the Bayesian posterior. This approach allowed a comprehensive treatment of the uncertainty regarding vaccination behavior in a realistic epidemiological model.
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spelling doaj.art-a444662bb54a42b1abb44bb50fdcb6bf2022-12-22T01:01:43ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582009-07-0157e100042510.1371/journal.pcbi.1000425Dynamic modeling of vaccinating behavior as a function of individual beliefs.Flávio Codeço CoelhoFlávio Codeço CoelhoClaudia T CodeçoIndividual perception of vaccine safety is an important factor in determining a person's adherence to a vaccination program and its consequences for disease control. This perception, or belief, about the safety of a given vaccine is not a static parameter but a variable subject to environmental influence. To complicate matters, perception of risk (or safety) does not correspond to actual risk. In this paper we propose a way to include the dynamics of such beliefs into a realistic epidemiological model, yielding a more complete depiction of the mechanisms underlying the unraveling of vaccination campaigns. The methodology proposed is based on Bayesian inference and can be extended to model more complex belief systems associated with decision models. We found the method is able to produce behaviors which approximate what has been observed in real vaccine and disease scare situations. The framework presented comprises a set of useful tools for an adequate quantitative representation of a common yet complex public-health issue. These tools include representation of beliefs as Bayesian probabilities, usage of logarithmic pooling to combine probability distributions representing opinions, and usage of natural conjugate priors to efficiently compute the Bayesian posterior. This approach allowed a comprehensive treatment of the uncertainty regarding vaccination behavior in a realistic epidemiological model.http://europepmc.org/articles/PMC2700262?pdf=render
spellingShingle Flávio Codeço Coelho
Flávio Codeço Coelho
Claudia T Codeço
Dynamic modeling of vaccinating behavior as a function of individual beliefs.
PLoS Computational Biology
title Dynamic modeling of vaccinating behavior as a function of individual beliefs.
title_full Dynamic modeling of vaccinating behavior as a function of individual beliefs.
title_fullStr Dynamic modeling of vaccinating behavior as a function of individual beliefs.
title_full_unstemmed Dynamic modeling of vaccinating behavior as a function of individual beliefs.
title_short Dynamic modeling of vaccinating behavior as a function of individual beliefs.
title_sort dynamic modeling of vaccinating behavior as a function of individual beliefs
url http://europepmc.org/articles/PMC2700262?pdf=render
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