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Equilibrium and sensitivity analysis of a spatio-temporal host-vector epidemic model

Authors
  • Martin, Olivier
  • Fernandez-Diclo, Yasmil
  • Coville, Jerome
  • Soubeyrand, Samuel
Publication Date
Feb 17, 2020
Source
HAL-ENAC
Keywords
Language
English
License
Unknown
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Abstract

Insect-borne diseases are diseases carried by insects affecting humans, animals or plants. They have the potential to generate massive outbreaks such as the Zika epidemic in 2015-2016 mostly distributed in the Americas, the Pacific and Southeast Asia, and the multi-foci outbreak caused by the bacterium {\it Xylella fastidiosa} in Europe in the 2010s. In this article, we propose and analyze the behavior of a spatially-explicit compartmental model adapted to pathosystems with fixed hosts and mobile vectors disseminating the disease. The behavior of this model based on a system of partial differential equations is complementarily characterized via a theoretical study of its equilibrium states and a numerical study of its transitive phase using global sensitivity analysis. The results are discussed in terms of implications concerning the surveillance and control of the disease over a medium-to-long temporal horizon.

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