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A Spatial Network-Based Assessment of Individual Exposure to COVID-19

Author

Listed:
  • Zihan Kan
  • Mei-Po Kwan
  • Jianwei Huang
  • Jiannan Cai
  • Dong Liu

Abstract

This study seeks to examine the possible impacts of sociodemographic factors, individual mobility patterns, and daily activities on individual exposure to COVID-19 risk when assessed by different risk measures. Taking Hong Kong as the study area, we first model the risk of COVID-19 using a density-based approach and a network-based approach and reveal the differences in the spatial distributions of COVID-19 transmission risk they obtained. Then, using two-day individual Global Positioning System trajectory data and travel diaries collected from individuals in two communities, we measure individual exposure to COVID-19 transmission risk based on their mobility patterns and reveal the disparities in COVID-19 risk exposure among residents of different demographic groups and neighborhoods when conducting different activities. This study reveals the differences in the spatial patterns of COVID-19 transmission risk when the risk is conceptualized by density and network. It demonstrates the power of a spatial network approach in enhancing our understanding of individual exposure to infectious diseases. This study also advances the existing literature by exploring COVID-19 risk exposure, considering individual daily mobility and addressing the uncertain geographic context problem in analyzing individual COVID-19 risk exposure.

Suggested Citation

  • Zihan Kan & Mei-Po Kwan & Jianwei Huang & Jiannan Cai & Dong Liu, 2024. "A Spatial Network-Based Assessment of Individual Exposure to COVID-19," Annals of the American Association of Geographers, Taylor & Francis Journals, vol. 114(8), pages 1693-1703, September.
    • Handle: RePEc:taf:raagxx:v:114:y:2024:i:8:p:1693-1703
    DOI: 10.1080/24694452.2023.2266021
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