报告题目：Impact of heterogeneity on disease transmission dynamics

报告人： 肖燕妮（西安交通大学）

报告时间：2025年6月2日上午 8：30-9：10

报告地点：数学大楼912报告厅

参加人员：教师、研究生、本科生

报告摘要: Human heterogeneity is a critical issue in infectious disease transmission dynamics modelling, and it has recently received much attention in COVID-19 studies. In this talk, 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. Moreover, human heterogeneity may decrease the basic reproduction number but increase the level of herd immunity, implying the unreliability of the basic reproduction number in characterizing the spread and control of infectious diseases with human heterogeneity.

This is a joint work with Pengfei Song, Biao Tang, Sanyi Tang and Jianhong Wu.

报告人简介： 肖燕妮, 西安交通大学数学与统计学院副院长、数学与生命科学交叉研究中心主任、博士生导师，主要从事数据和问题驱动的传染病动力学的研究。 参与完成了国家“十一五”、“十二五”和“十三五”科技重大专项艾滋病领域的建模研究。 主持国家自然科学基金7项，包括重点项目1项、重点国际合作1项，主持科技部重点研发课题1项。2022年至今任中国生物数学专业委员会主任，2020年起任国务院第八届学科评议组成员（数学）。