Infectious Disease Behaviour Resulting In A Public Health Catastrophe

Abstract

In epidemiology, the search for new behaviour of infectious agents, processes and
mechanisms of diffusion of infection of emerging infectious diseases caused by global warming
has already led to tangible results. This paper proposes a dynamic endemic model Susceptible,
Exposed, Precontaged, Infected, Retired, Susceptible (SEPIRS). This model is specialized in epidemics that persist for a long time and in cases where the infection spreads directly: first between
pre-contagious individuals (asymptomatic) and susceptible individuals, second between infectious
individuals (symptomatic) and susceptible individuals. This model characterises the individual recovering from an infection to develop a temporary immunity and then become susceptible again
after some time.