A host-vector model for malaria with infective immigrants |
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Authors: | J. Tumwiine L.S. Luboobi |
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Affiliation: | a Department of Mathematics, Mbarara University of Science and Technology, PO Box 1410, Mbarara, Uganda b Department of Mathematics, Makerere University, PO Box 7062, Kampala, Uganda |
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Abstract: | This paper considers a host-vector mathematical model for the spread of malaria that incorporates recruitment of human population through a constant immigration, with a fraction of infective immigrants. The model analysis is carried out to find the steady states and their stability. It is found that in the presence of infective immigrant humans, there is no disease-free equilibrium point. However, the model exhibits a unique endemic equilibrium state if the fraction of the infective immigrants ? is positive. When the fraction of infective immigrants approaches a small value, there is sharp threshold for which the disease can be reduced in the community. The unique endemic equilibrium for which there is a fraction of infective immigrants is globally asymptotically stable. |
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Keywords: | Endemic equilibrium Global stability Infective immigrants |
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