A Model of the Propagation Endemic of Emerging Infectious Diseases SEPI

In the field of epidemiology, there are two classes of dynamic models. There is the class of temporary models specialized for short-lived epidemics and the class of endemic models reserved for epidemics that persist for a long time. In the light of the new temporary dynamic model Susceptible, Exposed, Precontaged, Infected (SEPI) (1erclass) that we have proposed and in order to make our model more efficient, we will develop the endemic model SEPI (2thclass) and to propose the different studies relating to this model. This endemic SEPI model is specialized in epidemics that persist for a long time and in cases where the infection spreads directly: first between precontagious individuals (asymptomatic) and susceptible individuals, second between infectious individuals (symptomatic) and susceptible individuals.