Browsing by Author "Adesanya, Adelani O."

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    Mathematical Transmission of SEIR Epidemic Model with Natural Immunity
    (Asian Journal of Pure and Applied Mathematics, 2021-09) Olopade, Adesola I.; Adesanya, Adelani O.; Akinwumi, Titilayo O.
    The SEIR mathematical and epidemiological model with natural immunity and treatment rate are explored in this paper. Both local and global stability were analyzed for disease-free equilibrium point. The threshold quantity “Basic Reproduction Number” ( 0 R ) with natural immunity was derived using next generation matrix method (NGM), and it is shown that the disease free equilibrium point is locally and globally asymptotically stable whenever the basic reproduction number is less than unity i.e. ( R0  1), while endemic whenever ( 1 0 R  ). Numerical simulations show that, strong natural immunity reduces the dynamical spread of epidemic diseases.