Increased efficiency in the second-hand tire trade provides opportunity for dengue control

Dengue fever is increasing in geographical range, spread by invasion of its vector mosquitoes. The trade in second-hand tires has been implicated as a factor in this process because they act as mobile reservoirs of mosquito eggs and larvae. Regional transportation of tires can create linkages betwee...

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Main Authors: Pliego Pliego, Emilene, Velázquez-Castro, Jorge, Eichhorn, Markus P., Fraguela Collar, Andrés
Format: Article
Published: Elsevier 2018
Subjects:
Online Access:https://eprints.nottingham.ac.uk/48132/
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author Pliego Pliego, Emilene
Velázquez-Castro, Jorge
Eichhorn, Markus P.
Fraguela Collar, Andrés
author_facet Pliego Pliego, Emilene
Velázquez-Castro, Jorge
Eichhorn, Markus P.
Fraguela Collar, Andrés
author_sort Pliego Pliego, Emilene
building Nottingham Research Data Repository
collection Online Access
description Dengue fever is increasing in geographical range, spread by invasion of its vector mosquitoes. The trade in second-hand tires has been implicated as a factor in this process because they act as mobile reservoirs of mosquito eggs and larvae. Regional transportation of tires can create linkages between rural areas with dengue and disease-free urban areas, potentially giving rise to outbreaks even in areas with strong local control measures. In this work we sought to model the dynamics of mosquito transportation via the tire trade, in particular to predict its role in causing unexpected dengue outbreaks through vertical transmission of the virus across generations of mosquitoes. We also aimed to identify strategies for regulating the trade in second-hand tires, improving disease control. We created a mathematical model which captures the dynamics of dengue between rural and urban areas, taking into account the movement and storage time of tires, and mosquito diapause. We simulate a series of scenarios in which a mosquito population is introduced to a dengue-free area via movement of tires, either as single or multiple events, increasing the likelihood of a dengue outbreak. A persistent disease state can be induced regardless of whether urban conditions for an outbreak are met, and an existing endemic state can be enhanced by vector input. Finally we assess the potential for regulation of tire processing as a means of reducing the transmission of dengue fever using a specific case study from Puerto Rico. Our work demonstrates the importance of the second-hand tire trade in modulating the spread of dengue fever across regions, in particular its role in introducing dengue to disease-free areas. We propose that reduction of tire storage time and control of their movement can play a crucial role in containing dengue outbreaks.
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spelling nottingham-481322020-05-04T19:27:39Z https://eprints.nottingham.ac.uk/48132/ Increased efficiency in the second-hand tire trade provides opportunity for dengue control Pliego Pliego, Emilene Velázquez-Castro, Jorge Eichhorn, Markus P. Fraguela Collar, Andrés Dengue fever is increasing in geographical range, spread by invasion of its vector mosquitoes. The trade in second-hand tires has been implicated as a factor in this process because they act as mobile reservoirs of mosquito eggs and larvae. Regional transportation of tires can create linkages between rural areas with dengue and disease-free urban areas, potentially giving rise to outbreaks even in areas with strong local control measures. In this work we sought to model the dynamics of mosquito transportation via the tire trade, in particular to predict its role in causing unexpected dengue outbreaks through vertical transmission of the virus across generations of mosquitoes. We also aimed to identify strategies for regulating the trade in second-hand tires, improving disease control. We created a mathematical model which captures the dynamics of dengue between rural and urban areas, taking into account the movement and storage time of tires, and mosquito diapause. We simulate a series of scenarios in which a mosquito population is introduced to a dengue-free area via movement of tires, either as single or multiple events, increasing the likelihood of a dengue outbreak. A persistent disease state can be induced regardless of whether urban conditions for an outbreak are met, and an existing endemic state can be enhanced by vector input. Finally we assess the potential for regulation of tire processing as a means of reducing the transmission of dengue fever using a specific case study from Puerto Rico. Our work demonstrates the importance of the second-hand tire trade in modulating the spread of dengue fever across regions, in particular its role in introducing dengue to disease-free areas. We propose that reduction of tire storage time and control of their movement can play a crucial role in containing dengue outbreaks. Elsevier 2018-01-21 Article PeerReviewed Pliego Pliego, Emilene, Velázquez-Castro, Jorge, Eichhorn, Markus P. and Fraguela Collar, Andrés (2018) Increased efficiency in the second-hand tire trade provides opportunity for dengue control. Journal of Theoretical Biology, 437 . pp. 126-136. ISSN 1095-8541 Aedes; vertical transmission; diapause; reservoirs; transportation; mobility; metapopulations http://www.sciencedirect.com/science/article/pii/S0022519317304848?via%3Dihub doi:10.1016/j.jtbi.2017.10.025 doi:10.1016/j.jtbi.2017.10.025
spellingShingle Aedes; vertical transmission; diapause; reservoirs; transportation; mobility; metapopulations
Pliego Pliego, Emilene
Velázquez-Castro, Jorge
Eichhorn, Markus P.
Fraguela Collar, Andrés
Increased efficiency in the second-hand tire trade provides opportunity for dengue control
title Increased efficiency in the second-hand tire trade provides opportunity for dengue control
title_full Increased efficiency in the second-hand tire trade provides opportunity for dengue control
title_fullStr Increased efficiency in the second-hand tire trade provides opportunity for dengue control
title_full_unstemmed Increased efficiency in the second-hand tire trade provides opportunity for dengue control
title_short Increased efficiency in the second-hand tire trade provides opportunity for dengue control
title_sort increased efficiency in the second-hand tire trade provides opportunity for dengue control
topic Aedes; vertical transmission; diapause; reservoirs; transportation; mobility; metapopulations
url https://eprints.nottingham.ac.uk/48132/
https://eprints.nottingham.ac.uk/48132/
https://eprints.nottingham.ac.uk/48132/