As the Duck Flies—Estimating the Dispersal of Low-Pathogenic Avian Influenza Viruses by Migrating Mallards

Many pathogens rely on the mobility of their hosts for dispersal. In order to understand and predict how a disease can rapidly sweep across entire continents, illuminating the contributions of host movements to disease spread is pivotal. While elegant proposals have been made to elucidate the spread...

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Main Authors: Mariëlle L. van Toor, Alexis Avril, Guohui Wu, Scott H. Holan, Jonas Waldenström
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-12-01
Series:Frontiers in Ecology and Evolution
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fevo.2018.00208/full
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author Mariëlle L. van Toor
Alexis Avril
Guohui Wu
Scott H. Holan
Jonas Waldenström
author_facet Mariëlle L. van Toor
Alexis Avril
Guohui Wu
Scott H. Holan
Jonas Waldenström
author_sort Mariëlle L. van Toor
collection DOAJ
description Many pathogens rely on the mobility of their hosts for dispersal. In order to understand and predict how a disease can rapidly sweep across entire continents, illuminating the contributions of host movements to disease spread is pivotal. While elegant proposals have been made to elucidate the spread of human infectious diseases, the direct observation of long-distance dispersal events of animal pathogens is challenging. Pathogens like avian influenza A viruses, causing only short disease in their animal hosts, have proven exceptionally hard to study. Here, we integrate comprehensive data on population and disease dynamics for low-pathogenic avian influenza viruses in one of their main hosts, the mallard, with a novel movement model trained from empirical, high-resolution tracks of mallard migrations. This allowed us to simulate individual mallard migrations from a key stopover site in the Baltic Sea for the entire population and link these movements to infection simulations. Using this novel approach, we were able to estimate the dispersal of low-pathogenic avian influenza viruses by migrating mallards throughout several autumn migratory seasons and predicted areas that are at risk of importing these viruses. We found that mallards are competent vectors and on average dispersed viruses over distances of 160 km in just 3 h. Surprisingly, our simulations suggest that such dispersal events are rare even throughout the entire autumn migratory season. Our approach directly combines simulated population-level movements with local infection dynamics and offers a potential converging point for movement and disease ecology.
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spelling doaj.art-1b881a66eddf47318fc71338e90a9e852022-12-22T01:20:01ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2018-12-01610.3389/fevo.2018.00208394353As the Duck Flies—Estimating the Dispersal of Low-Pathogenic Avian Influenza Viruses by Migrating MallardsMariëlle L. van Toor0Alexis Avril1Guohui Wu2Scott H. Holan3Jonas Waldenström4Centre for Ecology and Evolution in Microbial Model Systems, Linnaeus University, Kalmar, SwedenCentre for Ecology and Evolution in Microbial Model Systems, Linnaeus University, Kalmar, SwedenSAS Institute Inc., Cary, NC, United StatesDepartment of Statistics, University of Missouri, Columbia, MO, United StatesCentre for Ecology and Evolution in Microbial Model Systems, Linnaeus University, Kalmar, SwedenMany pathogens rely on the mobility of their hosts for dispersal. In order to understand and predict how a disease can rapidly sweep across entire continents, illuminating the contributions of host movements to disease spread is pivotal. While elegant proposals have been made to elucidate the spread of human infectious diseases, the direct observation of long-distance dispersal events of animal pathogens is challenging. Pathogens like avian influenza A viruses, causing only short disease in their animal hosts, have proven exceptionally hard to study. Here, we integrate comprehensive data on population and disease dynamics for low-pathogenic avian influenza viruses in one of their main hosts, the mallard, with a novel movement model trained from empirical, high-resolution tracks of mallard migrations. This allowed us to simulate individual mallard migrations from a key stopover site in the Baltic Sea for the entire population and link these movements to infection simulations. Using this novel approach, we were able to estimate the dispersal of low-pathogenic avian influenza viruses by migrating mallards throughout several autumn migratory seasons and predicted areas that are at risk of importing these viruses. We found that mallards are competent vectors and on average dispersed viruses over distances of 160 km in just 3 h. Surprisingly, our simulations suggest that such dispersal events are rare even throughout the entire autumn migratory season. Our approach directly combines simulated population-level movements with local infection dynamics and offers a potential converging point for movement and disease ecology.https://www.frontiersin.org/article/10.3389/fevo.2018.00208/fullavian influenza viruslow pathogenicmigrationOttenbypopulation-levelsimulation
spellingShingle Mariëlle L. van Toor
Alexis Avril
Guohui Wu
Scott H. Holan
Jonas Waldenström
As the Duck Flies—Estimating the Dispersal of Low-Pathogenic Avian Influenza Viruses by Migrating Mallards
Frontiers in Ecology and Evolution
avian influenza virus
low pathogenic
migration
Ottenby
population-level
simulation
title As the Duck Flies—Estimating the Dispersal of Low-Pathogenic Avian Influenza Viruses by Migrating Mallards
title_full As the Duck Flies—Estimating the Dispersal of Low-Pathogenic Avian Influenza Viruses by Migrating Mallards
title_fullStr As the Duck Flies—Estimating the Dispersal of Low-Pathogenic Avian Influenza Viruses by Migrating Mallards
title_full_unstemmed As the Duck Flies—Estimating the Dispersal of Low-Pathogenic Avian Influenza Viruses by Migrating Mallards
title_short As the Duck Flies—Estimating the Dispersal of Low-Pathogenic Avian Influenza Viruses by Migrating Mallards
title_sort as the duck flies estimating the dispersal of low pathogenic avian influenza viruses by migrating mallards
topic avian influenza virus
low pathogenic
migration
Ottenby
population-level
simulation
url https://www.frontiersin.org/article/10.3389/fevo.2018.00208/full
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