Quantification of droplet and contact transmission risks among elementary school students based on network analyses using video-recorded data
Shuta Kikuchi, Keisuke Nakajima, Yasuki Kato, Takeshi Takizawa, Junichi Sugiyama, Taisei Mukai, Yasushi Kakizawa, Setsuya Kurahashi, Sara Hemati, Sara Hemati, Sara Hemati
TL;DR
This study uses video recordings to analyze how diseases spread among elementary school students through droplets and contact, identifying key fomites and transmission risks.
Contribution
A novel method for constructing contact networks and identifying fomites using video-recorded behavioral data in elementary schools.
Findings
Items like desks, doors, and shirts were identified as potential fomites with high contact frequency.
Micro-simulations showed most viral copies were transmitted through single items.
Video-based analysis provides more reliable transmission risk data than traditional methods.
Abstract
In elementary schools, immunologically immature students come into close contact with each other and are susceptible to the spread of infectious diseases. To analyze pathogen transmission among students, it is essential to obtain behavioral data. Questionnaires and wearable sensor devices were used for communication behavior and swab sampling was employed for contact behavior. However, these methods have been insufficient in capturing information about the processes and actions of each student that contribute to pathogen transmission. Therefore, in this study, actual behavioral data were collected using video recordings to evaluate droplet and contact transmission in elementary schools. The analysis of communication behavior revealed the diverse nature of interactions among students. By calculating the droplet transmission probabilities based on conversation duration, the risk of…
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Taxonomy
TopicsCOVID-19 epidemiological studies · Viral Infections and Outbreaks Research · COVID-19 and Mental Health