A temperature-dependent mathematical model of malaria transmission with stage-structured mosquito population dynamics
Bakary Traoré, Moussa Barro, Boureima Sangaré, Sado Traoré
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Source: Crossref
Published: Jan 1, 2021
DOI: 10.1515/msds-2020-0138
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Abstract In this paper, we formulate a temperature-dependent model for malaria transmission dynamics which includes immature stages of mosquitoes. The model is constructed by using ordinary differential equations with some parameters which are periodic functions. Two thresholds dynamics associated to the model have been derived: the vector reproduction ratio ℛ v and the basic reproduction ratio ℛ 0 . Through a rigorous analysis via theories and methods of dynamical systems, we prove that the global behavior of the model depends strongly on these two parameters. More precisely, we show that if ℛ v is greater than one and ℛ 0 is less than one then, the disease-free periodic equilibrium is globally attractive. If ℛ v is greater than one and ℛ 0 is greater than one, the disease remains persistent and the system admits at least one positive periodic solution. Finally, using the reported monthly mean temperature for Burkina Faso, numerical simulations are carried out to illustrate our mathematical results.
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