Speaker: Xiao Yanni, Professor and Doctoral Supervisor, Xi’an Jiaotong University

Date: October 17, 2025

Time: 9:00-10:00 am

Location: B1032, Zhixin Building, Shandong University

Sponsor: School of Mathematics, Shandong University

Abstract:

Accurate prediction of epidemics is pivotal for making well-informed decisions for the control of infectious diseases, but addressing heterogeneity in the system poses a challenge. In this talk, we propose a novel modelling framework integrating the spatio-temporal heterogeneity of susceptible individuals into homogeneous models, by introducing a continuous recruitment process for the susceptibles. Then, a general human heterogeneous disease model with mutation is proposed to comprehensively study the effects of human heterogeneity on basic reproduction number, final epidemic size and herd immunity. We show that human heterogeneity may increase or decrease herd immunity level, strongly depending on some convexity of the heterogeneity function. Finally, we examined the optimal spatially-dependent control measures to effectively and economically eliminate emerging infectious diseases.

For more information, please visit:

https://www.view.sdu.edu.cn/info/1020/206804.htm