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KMID : 0613620210410020007
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Health Social Welfare Review
2021 Volume.41 No. 2 p.7 ~ p.26
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The Transmission Dynamics of SARS-CoV-2 by Setting in Three Waves in the Seoul Metropolitan Area in South Korea
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Lee Jin-Hui
Park Min-Sook
Lee Sang-Won
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Abstract
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This study explored the COVID-19 spread pattern by setting in the Seoul Metropolitan Area in South Korea. A total of 66,048 reported cases were analyzed by setting where transmission of SARS-CoV-2 was reported to occur and result in clusters of cases in each of the three waves. This analysis was to compare and understand the pattern of COVID-19 transmission from January 2020 to March 2021. Personal contact and unknown were the two main routes of transmission.
Particular settings, such as religious venues, offices, bars, and conglomerate settings, were found to have triggered waves. When examining indicators of clustering, trajectories, and intensity of cases under individual triggering settings, it was found that the implementation of prompt, coordinated, and tailored responses mitigated the spread in those settings. Identifying settings that result in transmission clusters enables us to establish prompt and efficient surveillance and/or preventive measures for these in case we have other similar epidemic events in the future.
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KEYWORD
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COVID-19, SARS-CoV-2, Clustering, Transmission, Hotspot
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