Sudathip Rodkeaw. Impact of temperature on transmission of dengue fever by multiple mosquito populations. Master's Degree(Applied Mathematics). King Mongkut's University of Technology North Bangkok. Central Library. : King Mongkut's University of Technology North Bangkok, 2015.
Impact of temperature on transmission of dengue fever by multiple mosquito populations
Abstract:
The purpose of this thesis is to study effects of the temperature on transmission of the dengue fever model for human and multiple mosquito populations, with the contributing of temperature-dependent entomological parameters. The model consists of three groups, which are the SI model for pre-adult mosquito, the SEI model for adult mosquito, and the SIR model for human. We analyze the disease-free (DFE) and endemic (EE) equilibria and calculate the basic reproduction number Rₒ. The sensitivity analysis for Rₒ and the EE are also presented. The numerical results show that the highest impact parameters on Rₒ and both equilibria are temperature (K), adult mosquito death rate (µᵥ), transmissible biting rate(β), total oviposition rate (bᵥ) and human recovery rate (γ), respectively. Moreover, the Lyapunov function is applied to prove global stability at the DFE when Rₒ<1 and bᵥ= µᵥNᵥ. In the special case of two groups, the SEI model for mosquito and the SIR model for human, we prove global stability at the EE using the Lyapunov function when the reproduction number is greater than 1. In addition the number of infection in lower when the temperature is higher. Finally, we found that temperature is the most important factor for the control of the disease.