报告人:何岱海教授(香港理工大学)
报告时间:2025年9月25日
报告地点:复杂系统研究所四层(409室)(9:30-12:00)
报告人简介:何岱海,香港理工大学应用数学系教授,博士生导师。1999年获西安交通大学工学博士学位,2006年获加拿大麦克马斯大学数学博士学位。曾在北京师范大学物理系、美国密西根大学生态学系、以色列特拉雄夫大学动物学系做博士后研究。主要研究兴趣是传染病建模和数据统计分析,在PNAS,Sci Adv,Ann Intern,Eur Respir J,J R Soc Interface等权威期刊发表论文140余篇,研究成果受到国内外媒体的广泛报道。其关于非洲安哥拉黄热病的建模获2018年国际疾病监测学会的科学贡献最佳论文第二名,并先后获得香港研究资助局项目、香港食品与卫生环境署健康与医疗项目、阿里巴巴合作研究基金等多项基金资助。Google H-index 47。连续三年入选斯坦福大学发布的全球2%顶尖科学家榜单(2022-2024),以及Scholar GPS 2024全球前0.05%学者。
报告摘要人:The global resurgence of chikungunya virus (CHKV) in 2025, marked by outbreaks in the Indian Ocean, Africa, and the Americas, has prompted new public health concern. Brazil remains one of the most heavily affected countries, reporting over 180,000 cases. This study analyzes the epidemic dynamics of CHIKV with a comparative analysis with dengue virus(DENV), focusing on Brazil from 2017 to 2025. Drawing on national surveillance data, we investigate spatiotemporal heterogeneity demographic distributions, and infection attack rates for both arboviruses. We find that CHlKV exhibits greater regional heterogeneity and lower temporal synchrony than DENV, likely due to differences in basic reproduction number and population immunity. Age-specific case burdens were highest among working-age adults, with infants and the elderly experiencing greater severity. We use a modified SEIR5S compartmental model to reconstruct long-term epidemic trajectories in region level.

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