%0 Journal Article
%A Bai, Liang
%A Nieto, Juan J.
%A Uzal Couselo, José Manuel
%T On a delayed epidemic model with non-instantaneous impulses
%D 2020
%@ 1553-5258
%U https://hdl.handle.net/20.500.14352/100589
%X We introduce a non-instantaneous pulse vaccination model. Non-instantaneous impulsive nonlinear differential equations provide an adequate biomathematical model of some medical problems. In this paper we study some basic properties such as the attractiveness of the infection-free periodic solution and the permanence of some sub-population for a vaccine model where a constant fraction of the susceptible population is vaccinated in some periodic way. Our model is a system of nonlinear differential equations with impulses.
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