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Competitive exclusion in a multi-strain malaria transmission model with incubation period

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  • Zheng, Tingting
  • Nie, Lin-Fei
  • Teng, Zhidong
  • Luo, Yantao

Abstract

In this paper, a two-strain mathematical model is proposed to explore the effect of the incubation period of malaria parasites on the evolution of malaria. Firstly, ignoring the effect of incubation period in the mosquito, the basic reproduction number is calculated by the next generation matrix method. We proved that the disease is extinct and this model has a global asymptotical stabile disease-free equilibrium if the basic reproduction numbers of strains-1 and 2 are less than unity. Otherwise the disease is persistent and the strain-i dominant equilibrium is globally asymptotically stable if the reproduction number of stain-i is larger than unity and the reproduction number of stain-j is less than unity. Further, the similar results are obtained for the model with incubation period. In addition, we also consider the competitive exclusion phenomenon in two models. The sensitivity analysis shows that ignoring the incubation period of malaria will overestimate the risk of malaria transmission. Finally, some numerical simulations are performed to illustrate the main theoretical results.

Suggested Citation

  • Zheng, Tingting & Nie, Lin-Fei & Teng, Zhidong & Luo, Yantao, 2020. "Competitive exclusion in a multi-strain malaria transmission model with incubation period," Chaos, Solitons & Fractals, Elsevier, vol. 131(C).
    • Handle: RePEc:eee:chsofr:v:131:y:2020:i:c:s0960077919305028
    DOI: 10.1016/j.chaos.2019.109545
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    References listed on IDEAS

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    1. Li, Jinhui & Teng, Zhidong & Zhang, Long, 2018. "Stability and bifurcation in a vector-bias model of malaria transmission with delay," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 152(C), pages 15-34.
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    Cited by:

    1. Ndii, Meksianis Z. & Adi, Yudi Ari, 2021. "Understanding the effects of individual awareness and vector controls on malaria transmission dynamics using multiple optimal control," Chaos, Solitons & Fractals, Elsevier, vol. 153(P1).
    2. Wang, Sheng-Fu & Hu, Lin & Nie, Lin-Fei, 2021. "Global dynamics and optimal control of an age-structure Malaria transmission model with vaccination and relapse," Chaos, Solitons & Fractals, Elsevier, vol. 150(C).

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