Browsing Research Articles (Mathematics) by Author "Mengistu, Ashenafi Kelemu"
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Mathematical analysis of TB model with vaccination and saturated incidence rate
Witbooi, Peter Joseph; Mengistu, Ashenafi Kelemu (Hindawi, 2020)The model system of ordinary differential equations considers two classes of latently infected individuals, with different risk of becoming infectious. The system has positive solutions. By constructing a Lyapunov function, ... -
Tuberculosis in Ethiopia: Optimal intervention strategies and cost-effectiveness analysis
Mengistu, Ashenafi Kelemu; Witbooi, Peter J. (MDPI, 2022)This paper searches for optimal strategies for the minimization of the number of high-risk latent and active tuberculosis (TB) infectious individuals using real data from Ethiopia. Optimal control theory is harnessed for ...