Estimation of temporal covariances in pathogen dynamics using Bayesian multivariate autoregressive models.

It is well recognised that animal and plant pathogens form complex ecological communities of interacting organisms within their hosts, and there is growing interest in the health implications of such pathogen interactions. Although community ecology approaches have been used to identify pathogen int...

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Main Authors: Colette Mair, Sema Nickbakhsh, Richard Reeve, Jim McMenamin, Arlene Reynolds, Rory N Gunson, Pablo R Murcia, Louise Matthews
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-12-01
Series:PLoS Computational Biology
Online Access:https://doi.org/10.1371/journal.pcbi.1007492
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author Colette Mair
Sema Nickbakhsh
Richard Reeve
Jim McMenamin
Arlene Reynolds
Rory N Gunson
Pablo R Murcia
Louise Matthews
author_facet Colette Mair
Sema Nickbakhsh
Richard Reeve
Jim McMenamin
Arlene Reynolds
Rory N Gunson
Pablo R Murcia
Louise Matthews
author_sort Colette Mair
collection DOAJ
description It is well recognised that animal and plant pathogens form complex ecological communities of interacting organisms within their hosts, and there is growing interest in the health implications of such pathogen interactions. Although community ecology approaches have been used to identify pathogen interactions at the within-host scale, methodologies enabling robust identification of interactions from population-scale data such as that available from health authorities are lacking. To address this gap, we developed a statistical framework that jointly identifies interactions between multiple viruses from contemporaneous non-stationary infection time series. Our conceptual approach is derived from a Bayesian multivariate disease mapping framework. Importantly, our approach captures within- and between-year dependencies in infection risk while controlling for confounding factors such as seasonality, demographics and infection frequencies, allowing genuine pathogen interactions to be distinguished from simple correlations. We validated our framework using a broad range of synthetic data. We then applied it to diagnostic data available for five respiratory viruses co-circulating in a major urban population between 2005 and 2013: adenovirus, human coronavirus, human metapneumovirus, influenza B virus and respiratory syncytial virus. We found positive and negative covariances indicative of epidemiological interactions among specific virus pairs. This statistical framework enables a community ecology perspective to be applied to infectious disease epidemiology with important utility for public health planning and preparedness.
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spelling doaj.art-278facd6b2c94a9c866fac770f6cfe262022-12-21T22:38:57ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582019-12-011512e100749210.1371/journal.pcbi.1007492Estimation of temporal covariances in pathogen dynamics using Bayesian multivariate autoregressive models.Colette MairSema NickbakhshRichard ReeveJim McMenaminArlene ReynoldsRory N GunsonPablo R MurciaLouise MatthewsIt is well recognised that animal and plant pathogens form complex ecological communities of interacting organisms within their hosts, and there is growing interest in the health implications of such pathogen interactions. Although community ecology approaches have been used to identify pathogen interactions at the within-host scale, methodologies enabling robust identification of interactions from population-scale data such as that available from health authorities are lacking. To address this gap, we developed a statistical framework that jointly identifies interactions between multiple viruses from contemporaneous non-stationary infection time series. Our conceptual approach is derived from a Bayesian multivariate disease mapping framework. Importantly, our approach captures within- and between-year dependencies in infection risk while controlling for confounding factors such as seasonality, demographics and infection frequencies, allowing genuine pathogen interactions to be distinguished from simple correlations. We validated our framework using a broad range of synthetic data. We then applied it to diagnostic data available for five respiratory viruses co-circulating in a major urban population between 2005 and 2013: adenovirus, human coronavirus, human metapneumovirus, influenza B virus and respiratory syncytial virus. We found positive and negative covariances indicative of epidemiological interactions among specific virus pairs. This statistical framework enables a community ecology perspective to be applied to infectious disease epidemiology with important utility for public health planning and preparedness.https://doi.org/10.1371/journal.pcbi.1007492
spellingShingle Colette Mair
Sema Nickbakhsh
Richard Reeve
Jim McMenamin
Arlene Reynolds
Rory N Gunson
Pablo R Murcia
Louise Matthews
Estimation of temporal covariances in pathogen dynamics using Bayesian multivariate autoregressive models.
PLoS Computational Biology
title Estimation of temporal covariances in pathogen dynamics using Bayesian multivariate autoregressive models.
title_full Estimation of temporal covariances in pathogen dynamics using Bayesian multivariate autoregressive models.
title_fullStr Estimation of temporal covariances in pathogen dynamics using Bayesian multivariate autoregressive models.
title_full_unstemmed Estimation of temporal covariances in pathogen dynamics using Bayesian multivariate autoregressive models.
title_short Estimation of temporal covariances in pathogen dynamics using Bayesian multivariate autoregressive models.
title_sort estimation of temporal covariances in pathogen dynamics using bayesian multivariate autoregressive models
url https://doi.org/10.1371/journal.pcbi.1007492
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