Global analysis of multi-host and multi-vector epidemic models. 2019

Derdei Mahamat Bichara
Department of Mathematics, California State University, Fullerton, CA 92831, USA.

We formulate a multi-group and multi-vector epidemic model in which hosts' dynamics is captured by staged-progression framework and the dynamics of vectors is captured by an SI framework. The proposed model describes the evolution of a class of zoonotic infections where the pathogen is shared by m host species and transmitted by p arthropod vector species. In each host, the infectious period is structured into n stages with a corresponding infectiousness parameter to each vector species. We determine the basic reproduction number and investigate the dynamics of the systems when this threshold is less or greater than one. We show that the dynamics of the multi-host, multi-stage, and multi-vector system is completely determined by the basic reproduction number and the structure of the host-vector network configuration. Particularly, we prove that the disease-free equilibrium is globally asymptotically stable (GAS) whenever , and a unique strongly endemic equilibrium exists and is GAS if and the host-vector configuration is irreducible. That is, either the disease dies out or persists in all hosts and all vector species.

UI MeSH Term Description Entries

Related Publications

Derdei Mahamat Bichara
March 2007, Mathematical medicine and biology : a journal of the IMA,
Derdei Mahamat Bichara
May 2017, Journal of mathematical biology,
Derdei Mahamat Bichara
January 2017, Mathematical biosciences and engineering : MBE,
Derdei Mahamat Bichara
October 2007, Mathematical biosciences and engineering : MBE,
Derdei Mahamat Bichara
September 2019, Current opinion in biomedical engineering,
Derdei Mahamat Bichara
August 2022, Journal of theoretical biology,
Derdei Mahamat Bichara
February 2015, Mathematical biosciences and engineering : MBE,
Derdei Mahamat Bichara
October 2007, Journal of the Royal Society, Interface,
Derdei Mahamat Bichara
November 1993, Lancet (London, England),
Derdei Mahamat Bichara
July 2011, Mathematical biosciences,
Copied contents to your clipboard!