Global asymptotic behavior for mixed vaccination strategy in a delayed epidemic model with interim-immune

Author:

Liu Siyu, ,Shen Mingwang,Bi Yingjie, ,

Abstract

<abstract> <p>Vaccination strategy is considered as the most cost-effective intervention measure for controlling diseases. It will strengthen the immunity and reduce the risks of infections. In this paper, a new delayed epidemic model with interim-immune and mixed vaccination strategy is studied. The diseasefree periodic solution is obtained by twice stroboscopic mapping and the corresponding dynamical behavior is analyzed. We determine a threshold parameter <italic>R</italic><sub>1</sub>, the disease-free periodic solution is proved to be global attractive if <italic>R</italic><sub>1</sub> &lt; 1. We also establish a threshold parameter <italic>R</italic><sub>2</sub> for the permanence of the model, i.e., if <italic>R</italic><sub>2</sub> &gt; 1, the infectious disease will exist persistently. Then, we provide numerical simulations to illustrate our theoretical results intuitively. In particular, a practical application for newtype TB vaccine under mixed vaccination strategy is presented, based on the proposed theory and the data reported by NBSC. The mixed vaccination strategy can achieve the End TB goal formulated by WHO in limited time. Our study will help public health agency to design mixed control strategy which can reduce the burden of infectious diseases.</p> </abstract>

Publisher

American Institute of Mathematical Sciences (AIMS)

Subject

Applied Mathematics,Computational Mathematics,General Agricultural and Biological Sciences,Modeling and Simulation,General Medicine

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