报告题目：Is there a risk of Chikungunya outbreak with autochthonous transmission in Ontario, Canada?
主持人：安琪 博士
报告时间：2021年10月14日19:30-20:30
报告地点：腾讯会议（259 663 225）
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报告摘要：
Chikungunya is a mosquito-borne disease that is transmitted by Aedes mosquitoes. In 2013, Chikungunya spread across Central and South America as well as the Caribbean. As the climate changes, a northward migration seems likely. Adult Aedes aegypti and Aedes albopictus mosquitoes were captured inWindsor, Ontario, in the summers of 2016 and 2017, which suggests that the Aedes mosquito species may becoming established in Canada as the climate warms. To assess the risk of a Chikungunya outbreak with the autochthonous transmission in Canada, we developed a transmission model that incorporates maturation delay for mosquito reproduction as well as extrinsic and intrinsic incubation delays due to the impact of temperature conditions. The basic reproduction number was computed to evaluate the effect of temperature on the risk of Chikungunya transmission in Canada. The dynamical analysis shows that maturation delay may destabilize the infected steady state through a Hopf bifurcation. However, extrinsic incubation delay and intrinsic incubation delay do not affect the stability of the infected steady state but rather alter the peaking time and number of infected humans.
报告人简介：
宋海涛，山西大学副教授，硕士生导师，加拿大约克大学博士后，美国数学会《数学评论》(Mathematical Reviews)评论员。主要研究领域为生物数学、传染病模型、时滞微分方程的稳定性和分支。本硕博就读于哈尔滨工业大学，于2014年获得数学博士学位，并于2016-2018年在加拿大约克大学做博士后研究（合作导师是朱怀平教授）。在微分方程相关领域发表学术论文17篇，主持或完成2项国家自然科学基金（面上项目和青年项目）和4项省部级项目，获得山西省高等学校优秀青年学术带头人、三晋英才-青年优秀人才、山西大学五四青年奖章。
数学与统计学院
2021年10月14日
