文章基本信息

标题：Effect of pulse vaccination on dynamics of dengue with periodic transmission functions
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作者：Rashid Jan ; Yanni Xiao
期刊名称：Advances in Difference Equations
印刷版ISSN：1687-1839
电子版ISSN：1687-1847
出版年度：2019
卷号：2019
期号：1
页码：1-17
DOI：10.1186/s13662-019-2314-y
出版社：Hindawi Publishing Corporation
摘要：Pulse vaccination is a repeated vaccination policy, which plays a tremendous role in the global fight against communicable diseases in terms of saving medical resources and decreasing the economic burden. In this article, we propose a dynamic model of dengue infection with periodic transmission functions and seasonality in vector population. Furthermore, we introduce a pulse vaccination strategy in the susceptible host population to examine how frequency and intensity of implementation of this strategy affect the dynamics of dengue infection. We successfully obtained the threshold dynamics by defining the basic reproduction number R0, which is the spectral radius of the next generation operator and governs whether the disease dies out or not. It has been established that the infection-free periodic solution of the proposed impulsive system is globally asymptotically stable if R0<1 and is unstable otherwise. Moreover, we found that the dengue infection is uniformly persistent for the proposed system if R0>1. Finally, we execute the system numerically to illustrate the piecewise solutions of the proposed system with impulsive vaccination measure and to investigate the influence of different control parameters on the basic reproduction. The finding indicates that a frequent implementation of the vaccination strategy with great intensity and the use of mosquito nets can essentially lead to a decline of new infections.
关键词：Dengue fever;Periodic transmission;Impulsive vaccination;Asymptotical stability;Uniform persistence;Numerical simulations