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February 12, 2024

Mapping the Invisible: Network Science and Spatial Analysis in the Fight Against COVID-19

Event Series: Global Public Health Seminars

A map of Hong Kong

In this seminar, Weijun Yu, senior research officer at the Global Health Institute, delved into cutting-edge research exploring the spread of COVID-19 through the lens of network science and spatial analysis. This one-and-a-half-year observational research project sheds light on the complex mobility patterns and interactions of asymptomatic and symptomatic COVID-19 cases in Hong Kong. Yu explained how the project harnessed innovative methods to reveal the intricate social networks of vulnerable populations and spatial clustering patterns, providing crucial insights for global health strategies.

This event was open to all Georgetown University faculty, students, staff, and affiliates.

This event was co-sponsored by the Center for Global Health Science and Security, the School of Health’s Department of Health Management and Policy, and the Global Health Institute.


Dr. Weijun Yu, Ph.D., is a senior research officer at Georgetown University’s Global Health Institute. She earned her Ph.D. in epidemiology from University of Maryland, College Park, in spring 2023. Weijun has utilized advanced data analytics techniques to investigate the impact of COVID-19 on vulnerable populations in Hong Kong and has contributed to the development of several evidence-based clinical guidelines for occupational physicians in the United States. Her current research interests encompass infectious disease outcomes in vulnerable populations, alongside the use of epidemiological and innovative methodologies like network science to enhance disease surveillance and inform health policy.

Photo courtesy of mapping software and sources ArcGIS 10.2 and Esri China (Hong Kong)