The study of an epidemic model SVEIR with latency and Vaccination

摘要

By means of the study of the epidemic model,and unpermanent after treatment,a SVEIR epidemic model with vaccination for the newborns and susceptibles is established, and the basic reproduction number Ro was found, whether the disease will become the endemic disease was determined by Ro, and the disease-free equilibrium and endemic equilibrium was obtained too, then the global stability of equilibriua is proved by Lassalles Invariant Principle.