Mathematical Modelling of Endemic Malaria Transmission
American Journal of Applied Mathematics
Volume 3, Issue 2, April 2015, Pages: 36-46
Received: Jan. 10, 2015; Accepted: Feb. 6, 2015; Published: Feb. 13, 2015
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Authors
Abadi Abay Gebremeskel, Department of Mathematics, Haramaya University, Haramaya, Ethiopia
Harald Elias Krogstad, Department of Mathematical Sciences, Norwegian University of Science and Technology, Trondheim, Norway
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Abstract
Malaria is an infectious disease caused by the Plasmodium parasite and transmitted between humans through bites of female Anopheles mosquitoes. A mathematical model describes the dynamics of malaria and human population compartments in terms of mathematical equations and these equations represent the relations between relevant properties of the compartments. The aim of the study is to understand the important parameters in the transmission and spread of endemic malaria disease, and try to find appropriate solutions and strategies for its prevention and control by applying mathematical modelling. The malaria model is developed based on basic mathematical modelling techniques leading to a system of ordinary differential equations (ODEs). Qualitative analysis of the model applies dimensional analysis, scaling, and perturbation techniques in addition to stability theory for ODE systems. We also derive the equilibrium points of the model and investigate their stability. Our results show that if the reproduction number, R0, is less than 1, the disease-free equilibrium point is stable, so that the disease dies out. If R0 is larger than 1, then the disease-free equilibrium is unstable. In that case, the endemic state has a unique equilibrium, re-invasion is always possible, and the disease persists within the human population. Numerical simulations have been carried out applying the numerical software Matlab. These simulations show the behavior of the populations in time and the stability of disease-free and endemic equilibrium points.
Keywords
Malaria, Endemic Model, Reproduction Number, Equilibrium Points, Numerical Simulation
To cite this article
Abadi Abay Gebremeskel, Harald Elias Krogstad, Mathematical Modelling of Endemic Malaria Transmission, American Journal of Applied Mathematics. Vol. 3, No. 2, 2015, pp. 36-46. doi: 10.11648/j.ajam.20150302.12
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